Fleer...or Leer?

You know the brandname on the back of pickup canopies?

For a long time I saw it as 'Fleer' then something strange happened. One day I was driving behind a pickup with a canopy. Its name? 'Leer' I thought: Oh someone sratched out the "F" and went my merry way.

Long story short, I never saw the name 'Fleer' on pickup canopies from that day thereafter...

Only ...'Leer'