Solution for antique stereogram curling?

[P3D Thomas A. Busey <busey@xxxxxxxxxxx>]

I picked up an antique stereogram and 4 stereogram cards this weekend. 
The are all from the turn of the century, and in black and white with 
color hand tinting. The photographs appear laminated to the cardboard 
back somehow. The cardboard backs are curling so that the middle of the 
card is further from the eye than the top or the bottom, producing a bow of 
about 1/4" in the middle. This appears to be a common problem for these 
stereograms. I have a Seal heat press for mounting my B/W photos to card 
stock. Could I use this to flatten the pictures out? Would it delaminate 
the photos from the cardstock?
Thanks,
Tom  busey@xxxxxxxxxxx


------------------------------