This is a 23 Graphic rollfilm holder for a Speed/Crown/Century Graphic (with Graflock back) for eight 2-1/4" x 3-1/4" negatives on 120 film. It is the knob-wind model, but does feature the roller pins to flatten the film.
Asking $55. Price includes shipping to 48 US... Please contact me for a quote if you're outside of the US.