The image displays a Graflex RH10 or RH20 roll film back. This accessory allows large format cameras with a Graflok back to use 120 roll film, producing 6x7 cm images.

This model is compatible with 2x3 Graphic cameras featuring a Graflok back.

It uses 120 or 220 film and provides 10 exposures in the 6x7 format.

The unit features a lever advance mechanism for winding the film.