This sale is for a really excellent and unmarked Beattie Intenscreen with 45 degree (diagonal) split image # 83314 for any Mamiya RB67 camera, complete with original box and instructions.
This is the best screen for ease of focusing. A very very rare screen. This screen is boxed. The screen itself is perfect, with just very minor paint loss on the pressure springs.
It gives around 2 to 2.5 extra f stops of brightness in the viewfinder. You can find loads of information about Beattie screens in the Downloads/Miscellaneous section on my website. It will be very securely packed for shipping.