No.

http://i.ebayimg.com/t/Kodak-Wratten...Qg!~~60_57.JPG

This is the backside of of a envelope printed as carrying a "Wratten Photomechanical Filter".
As you see the text indicates that it is a cutable, not to be touched filter. Thus a gel filter.


Maybe as colour seperation filters can also be used for pictorial photography Kodak just packed those useful/intended for colour seperation work also in those special envelopes.