Thanks for that link, I have a box on the way for pinhole play. Earlier this year I figured I spent enough on filmholders and materials for the camera that I didn't want to add $80+ to the outlay for film (next WPPD, all bets are off!). Hopefully I can repair the hinge tape in one holder by the time I have film in hand. I found some book binding repair tape at Blick's that I believe should work. (Another hazard with antiques of unkknown age and provenance.)
Black book binding tape is fine for re-doing hinges. I have a roll of the stuff made by Lineco (the folks who make archival linen hinging tape for matting and framing).