In any event what I want to do is as I get some back, piece them together in a frame to create sort of a large poster of autographs. Now here's where some advice would come in handy. What material do you think would be best to mount the autographs together on inside the frame and what should I use to mount the cards themselves. Id like to actually put the cards side by side like a jigsaw puzzle so im not sure if mylar corners would allow me to do that without significant space in between. I have Scotch clear mounting squares but they do not say acid free. There's also the possibility of wanting to make the frame/display bigger as the autograph collection grows.
Just looking for any input as many of you are quite experienced at this sort of thing