Some time back I scored a full-plate R.B. Cycle Graphic (ca. 1908-1917). I am having a heck of a time finding plate holders for it. (I am heavily into shooting J. Lane Dry Plates.)

The problem is that every full-plate plate holder that comes up on eBay is wider than the one full-plate _film_ holder I have (189mm) and wider than the width of the opening in the spring/Graphic back (192.5mm).

Unlike 4x5, 5x7 et al. full-plate holders were not standardized. Even the width of a full-plate holder noted to be Folmer Graflex in an article in largeformatphotography (ca. 2011) was wider (196mm) than will fit in my Cycle Graphic.

Any thoughts?

The plate holders you're finding that are too wide for your Cycle are likely for Graflex backs on Graflex SLR's.
One member that has not posted in a very long time has a Cycle Graphic with a low 4 digit serial number putting it in the mid 1890's.
Finding holders for your camera will be difficult.

> Finding holders for your camera will be difficult.

45PSS, thank you for your reply. The lack of standardization of whole plate holders was discussed in an article in September 2011 in LargeFormatPhotography.

I've found that even whole-plate film holders in the right size are rare indeed. My plan is to keep looking. Maybe some day I'll find someone who is complaining that their plate/film holders are too narrow for their view camera.

At some point, I'll lash out and buy ones that are a few mm wider and then mill it down to fit the 192mm opening in the Graphic back.