I just picked one of these up to make copy negatives of old family photos, however this one came without the graflok back.
I have one from a Crown Graphic that I can use for the project, but I'm not sure how it attaches. The thing came to me in pieces.
The holes on the back and housing don't align as it is. Does anybody know how the back attaches? It looks like I can fabricate something to fit between the housing and the back, but I'd like to know how it's designed to work.