Roll film holder question

[Todd Caudle]

Perhaps a stupid question, but here goes. I have a 6x7cm roll film holder that g oes on my Wisner Expedition by removing the ground glass and sliding two clips i nto place to attach the holder to the back of the camera. Is that a Grafloc back ? I bought it just before springing for an insertable-type 6x9cm holder, so I've only used it a couple of times. On the back it says "GRAFLEX/SUBSEA" roll film holder. Anything you can tell me that I might like to know? If I decide to part with it, what's the going rate for one of these babies? TIA big time.

[paul owen]

Yep!! Its a graflock ( also known as an "international back" I believe??). The only problem you may have with the slip-in type of film holder is that its use can put strain on the spring back, especially if the camera is made of wood. I prefer the Horseman-type which attaches as you describe with your 6x7 back. Regards Paul