I recently received a box of photographic supplies from my pastor. I'm keeping almost all of them, however the one piece I am willing to part with is a Polaroid Land Film 545 Back, mechanically as far as I can tell it's in working shape. It's designed for 4x5 cameras. I think you can use the Fuji FP-100c and FP-100b 4x5 film in them.
Again as always, first person to PM me with their address will get it. No cost, shipped internationally.