Hi folks, just getting into LF and in searching for a development tank to process my own 4x5 sheet film. My favorite local camera store has a fifty year old collection of photo equipment. Picked up a cut film pack daylight developing tank made of bakelite that was complete . It will handle up to 12 sheets of film and is adjustable for 4x5 down. It was made by the old FR corp. which is no longer in business. If anyone out there has such a tank and still has the user info (you probably have to be older than dirt like me) I would appreciate a copy. Many thanks!