Thanks. I'm sorry my original reply was to another member about the differences of the RB&RZ, and I forgot to reply with quote. Anyway, thanks for this info on the currently available film. I looked at KEH but one they call the model 3 or something and it ony shows a picture of one side. But another one they have shows the other side of it with the round section you mentioned. Which is like all the RZ backs. Thanks again.
Originally Posted by keithwms