RARE Rochester Optical Premo Reversible Back Camera Folding Large Format

Original Rochester Optical camera, Premo Reverse Back large format camera. What makes this camera so unique, in order to accommodate long focal length lenses, the back opens drops down where the rails continue to accommodate the lengthening of the bellows. Has serial number of 94204.

Closed box measures 7 1/2” x 7 1/2” 5 1/2.” Rails down it’s roughly 20” long. I believe the negative size is 4 3/4 x 4 1/8 horz.

Condition - I gave it a light cleaning/dusting. I left the lens glass alone. Exterior - intact. Surface wear. Proper opening buttons are missing - have to poke holes with a pencil to open. Handle intact. Bellows - Look excellent. I don’t see any light leaks, they moved without issue. Hinges on box work perfect. No issue moving the planes along the rails. Lens looks good. Handle is attached with some wear. Exterior surface should be sealed.