That means you can turn that silver certificate into it's equivalent in silver...

Silver is currently trading at $37.50 per ounce...

$3.75 would by 1/10 of an ounce of silver.

$1.25 would by 1/3 of 1/10 of an ounce of silver or...

1.0 ounce of silver:$37.50 :: 1/10 ounce of silver:$3.75
1/3 of 1/10 = 33.333% (therefore)
33.333% of $3.75 = $1.25

WELL FUCKING CONGRATULATIONS!!!!

Your silver certificate will by you $1.25 in silver rather than $1.00 in silver!!!!

YOU MADE A FUCKEN QUARTER!!!!!!!!!!!

BUT I STILL SUGGEST YOU BUY SILVER!