I recently purchased a cel of Gene Starwind from 
Outlaw Star for $40 from ebay. It came with a 
matching sketch stuck to the back. I decided that 
since I paid a relatively good price for the cel, 
I would take a shot at unsticking the sketch. I 
was almost 100% successful, with only some slight 
damage to the back of the sketch. My question is, 
does anyone know how to remove thin bits of stuck 
paper from a cel? There are about three spots the 
size of a dime left on the back from the sketch. 
They are not visible when you look at the cel, 
only when you view the back of it. Should I 
attempt to remove the paper or is it OK to just 
leave it on there? Thanks.