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Are window glass that is over 100 years old....

 
Sireen-reborn
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User ID: 472239
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07/31/2008 10:06 AM
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Are window glass that is over 100 years old....
worth anything? And who would I ask for an honest estimate?

This is all glass that has the character and waves in it when you look at it...I believe them all to be hand blown too!
anything after 'but' is bullshit!

[link to www.myspace.com]

"Once you open your mind to the possibility of conspiracy, you then see conspiracy in everything." [link to deadbydecember-sireen.blogspot.com]
OxygenX

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07/31/2008 10:08 AM
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Re: Are window glass that is over 100 years old....
Im guessing any antique specialist, if they dont know they will certainly know who does :)
Cheers.
-----------------------------
"Shit, if this is gonna be that kind of party, I'm going to stick my dick in the mashed potatoes."

"The gene pool is stagnant and I am the minister of chlorine"

"What can be asserted without evidence can also be dismissed without evidence"
Anonymous Coward
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07/31/2008 10:12 AM
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Re: Are window glass that is over 100 years old....
awesome!! i love that stuff!!
Sinanju
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07/31/2008 10:13 AM
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Re: Are window glass that is over 100 years old....
Those waves are actually caused by gravity. Glass is actually a liquid.
OxygenX

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07/31/2008 10:15 AM
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Re: Are window glass that is over 100 years old....
Those waves are actually caused by gravity. Glass is actually a liquid.
 Quoting: Sinanju 466508

Very true :) Glass thats 100 years old is generally thicker at the bottom than at the top becuase the glass is "dripping" down :)
Cheers.
-----------------------------
"Shit, if this is gonna be that kind of party, I'm going to stick my dick in the mashed potatoes."

"The gene pool is stagnant and I am the minister of chlorine"

"What can be asserted without evidence can also be dismissed without evidence"
Anonymous Coward
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07/31/2008 10:16 AM
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Re: Are window glass that is over 100 years old....
worth anything? And who would I ask for an honest estimate?

This is all glass that has the character and waves in it when you look at it...I believe them all to be hand blown too!
 Quoting: Sireen-reborn


Do you know the reason glass is wavy when it's old???

Glass isn't actually a solid. It's phyical properties are between liquid and solid.

Glass is moving, but it moves EXTREMELY slowly.

Over time, it starts to "sag," giving it the wavy appearance.

[link to math.ucr.edu]

[link to www.newton.dep.anl.gov]
Sireen-reborn (OP)

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07/31/2008 10:16 AM
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Re: Are window glass that is over 100 years old....
We have a bunch of those WAVY windows from an old house over 100 years old....and we want to sell them. Was thinking of contacting a few glass (stained glass) shops around here, but I'm afraid they will under quote me KNOWING my ignorance.
anything after 'but' is bullshit!

[link to www.myspace.com]

"Once you open your mind to the possibility of conspiracy, you then see conspiracy in everything." [link to deadbydecember-sireen.blogspot.com]
Sireen-reborn (OP)

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07/31/2008 10:18 AM
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Re: Are window glass that is over 100 years old....
Ever peer through an old window and see ... the glass? The distortions in antique glass are part of the charm of old windows and a historic feature well worth retaining. Though some may tell you that ripples and dimples are a sign of age - as if glass sags like flesh after a century - the truth is less fantastic, though almost as amazing.

It's all a result of how glass was made. Once you grasp the two basic methods used to make window glass until the 1910s, you can tell a lot about the age of your windows and how to care for them.

Crown Glass
For centuries, the best quality window glass was crown glass. To make panes with this method, a glass blower gathered a clump of molten glass on the end of a hollow pipe and blew it into a bubble much like a bottle. As a helper attached a pontil rod to the other side of the bubble, the glassworker broke off the blowpipe creating a hole. Then, by heating the glass and coaxing it with a wood paddle, he quickly enlarged this hole into a rough plate.

Working in front of a furnace to keep the glass hot and fluid, the worker then spun he rod with his hands, often on a supporting bench, so that centrifugal force stretched the glass out into a thin disc - a process nearly identical to a baker spinning fresh pizza dough for a pie. When the blower severed the rod, he had a disc of thin glass, up to 4 feet in diameter.

After annealing this table in another oven to equalize stresses, the glass was carefully cut into panes according to grade and size. The central "bull's-eye" - the thickest and most malformed part where the rods touched - was usually unsalable and returned to the furnace.

In colonial America, however, whole or half tables of crown glass were regularly used uncut, often in gable windows. (Thomas Jefferson ordered several for the oculus and porthole windows at Monticello.) When thrifty Yankees divided up the tables, they put even the bull's-eyes to use in door or barn transoms where light meant more than a view.

Cylinder Glass
Though crown glass was made up to the 1850s, it could not supply the need for bigger panes created by a growing population. The glass that could was cylinder glass (also called broad glass or sheet glass), and it dominated this industry for the rest of the century.

To make cylinder glass, the glassworker blew a large tube of glass. After cracking off the blowpipe, the glassworker cut off the ends and slit the tube down one side. From here these shawls were transferred to a special oven where they could wilt and unfold into a flat sheet.

By the 1870s, glass manufacturers were adding pits dug deep in the floor of the glass factory to allow blowers to swing the glass as they blew. The resulting cylinders were up to 18 inches in diameter and a remarkable 7 feet in length.

Two decades later, some manufacturers had mechanized the steps with cranes and compressed air. These cylinders made possible by the Lubbers process - the last before the switch to drawn-sheet glass manufacturing in this century - were several feet in diameter.

Doing Old Windows
You can determine whether you have crown or cylinder glass simply by eye and feel. In crown glass, the spinning process leaves subtle curved swirls or ripples in the panes that appear when you look obliquely at the glass. In cylinder glass there are faint parallel ripples - the clash between the different inner and outer circumferences of the cylinder as the shawl is unfolded.
anything after 'but' is bullshit!

[link to www.myspace.com]

"Once you open your mind to the possibility of conspiracy, you then see conspiracy in everything." [link to deadbydecember-sireen.blogspot.com]
Anonymous Coward
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07/31/2008 10:20 AM
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Re: Are window glass that is over 100 years old....
We have a bunch of those WAVY windows from an old house over 100 years old....and we want to sell them. Was thinking of contacting a few glass (stained glass) shops around here, but I'm afraid they will under quote me KNOWING my ignorance.
 Quoting: Sireen-reborn

ya need a real antique appraiser. they'll know.. take a bunch of pics, and e-mail em after finding somebody.
Sireen-reborn (OP)

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07/31/2008 10:21 AM
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Re: Are window glass that is over 100 years old....
Thank you !
anything after 'but' is bullshit!

[link to www.myspace.com]

"Once you open your mind to the possibility of conspiracy, you then see conspiracy in everything." [link to deadbydecember-sireen.blogspot.com]
Anonymous Coward
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07/31/2008 10:22 AM
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Re: Are window glass that is over 100 years old....
Antique window panes

Postby rjnale on Tue Aug 08, 2006 12:34 am
We have been replacing the windows in our 1852 Italianate over the past 8 years at the rate of 3 or 4 at a time as we restored rooms. Last ones done a month ago! I saved every pane that I could get out of the wood frame without breaking and a couple of the big ones in the frames. All wraped in paper and boxed for safe keeping. They are all nice "rolled" glass, waves, wrinkles and bubbles galore! Value you ask? Bupkus! The best I got was from a gentleman who restored antique lighting fixtures. He polished and rewired 2 wall sconces I had for 8 panes! He wouldn't take then all! Said he could cut them down to repair broken and missing pieces in leaded windows and lamp shades. I felt it was a great deal as it took me 6 years of asking people to get that! The "stash" is very soon hitting the curb! I was thinking the same as you, they had to be worth something!

A pack rat to the end!
Anonymous Coward
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07/31/2008 10:22 AM
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Re: Are window glass that is over 100 years old....
Mmmmm, Hand Blown...
Enaid

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07/31/2008 10:58 AM
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Re: Are window glass that is over 100 years old....
I do stained glass for a hobby. The 2 stores I shop at each price their glass differently. One by weight, the other by size.

Are you talking about keeping the glass in the frames or taking it out of the frames?

So, yeah contact either Stained Glass store or antique place.

BTW - My teacher told me red glass is more expensive because there is actual gold in it.

Edited to add -- Go to various glass places online for pricing ideas. Spectrum brand glass is usually less expensive. There are other brands that are more expensive - esp. ones handmade in Europe. I once bought some just plane clear glass - was relatively inexpensive.
Personal responsibility - try it sometime. Quit blaming others for your bad choices. Consequences happen.

:enaid11:
Sireen-reborn (OP)

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07/31/2008 11:01 AM
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Re: Are window glass that is over 100 years old....
Interesting...when I was in Erie, PA last summer along the shores of Lake Erie can be found various glass shards, smoothed down by time. A local told us the red glass shards are rare and worth a LOT of money if found for the same reason...and also the red glass was indicative of royalty or something like that.

Called a local Stained Glass shop here, who's owner is an antique collector. Was told, basically, the value is determined by the buyer. Otherwise they are worthless.
They did offer to take them off my hands though ...for free.
anything after 'but' is bullshit!

[link to www.myspace.com]

"Once you open your mind to the possibility of conspiracy, you then see conspiracy in everything." [link to deadbydecember-sireen.blogspot.com]
Enaid

User ID: 310721
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07/31/2008 11:02 AM
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Re: Are window glass that is over 100 years old....
[link to www.delphiglass.com]



Glass finder page at Delph Glass w/ pull down menus so you can see the manufacturer.

edited to add - Maybe you can find a local hobbyist to buy them.
Personal responsibility - try it sometime. Quit blaming others for your bad choices. Consequences happen.

:enaid11:
Anonymous Coward
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Malaysia
07/31/2008 11:04 AM
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Re: Are window glass that is over 100 years old....
Interesting...when I was in Erie, PA last summer along the shores of Lake Erie can be found various glass shards, smoothed down by time. A local told us the red glass shards are rare and worth a LOT of money if found for the same reason...and also the red glass was indicative of royalty or something like that.

Called a local Stained Glass shop here, who's owner is an antique collector. Was told, basically, the value is determined by the buyer. Otherwise they are worthless.
They did offer to take them off my hands though ...for free.
 Quoting: Sireen-reborn


Give it to them, otherwise you will have those bothersome things around for ages, just like we did. In the end we ended up with lots of chards and had to take the lot to the container park. worthless.
Anonymous Coward
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07/31/2008 11:07 AM
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Re: Are window glass that is over 100 years old....
here on the cali central coast the dealers sell old glass in the frame. not sure for how much though.. i used to collect depression glassware. expensive!!
Anonymous Coward
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07/31/2008 11:08 AM
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Re: Are window glass that is over 100 years old....
worth anything? And who would I ask for an honest estimate?

This is all glass that has the character and waves in it when you look at it...I believe them all to be hand blown too!


Do you know the reason glass is wavy when it's old???

Glass isn't actually a solid. It's phyical properties are between liquid and solid.

Glass is moving, but it moves EXTREMELY slowly.

Over time, it starts to "sag," giving it the wavy appearance.

[link to math.ucr.edu]

[link to www.newton.dep.anl.gov]
 Quoting: markusmaximus

Interesting. I didn't know that. So if I had old wavy windows and took them out and turned them upside down, would they go back to original in say another 100 yrs?
Anonymous Coward
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12/17/2012 01:39 PM
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Re: Are window glass that is over 100 years old....
Those waves are actually caused by gravity. Glass is actually a liquid.
 Quoting: Sinanju 466508

Very true :) Glass thats 100 years old is generally thicker at the bottom than at the top becuase the glass is "dripping" down :)
 Quoting: OxygenX


Those waves are actually caused by gravity. Glass is actually a liquid.
 Quoting: Sinanju 466508


This is actually a common misconception, please see the wiki article on this topic:
[link to en.wikipedia.org]

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