Winders for 9x9 in aerial photography

[s021c518]

I am about to begin a project digitizing 50-80 year old analog (obviously!) aerial photography and am attempting to locate some winders that will fit this size of film. I am working with classic aerial film negatives, so each roll is 9 inches wide and roughly 700-1,000 ft long. These rollers were typically attached to the sides of light tables for easier handling of the film when it was being viewed from the roll. Any suggestions as to where I might find a couple of these would be greatly appreciated!