Quote Originally Posted by David A. Goldfarb View Post
Scotch tape the film together at the edges in the film rebate (not in the image area). You should be able to do it just at one edge.

Sometimes I shoot 4 (almost) identical 6x17cm exposures on a roll to make small albumen prints in quantity, and I print them on one 8x10" sheet, and I just tape them together on one edge, and I print them in a split-back contact printing frame. If they come a bit out of alignment, I can usually adjust them with half the back clamped down and half open, with the taped edge under the clamped side.
Does the tape show in the final image as a lighter spot in the dark rebate area of the print?