Posted by Les Newcomer on November 16, 2000 at 09:05:42:
In Reply to: Re: speed-i-o-scope posted by Jim McKellar on November 15, 2000 at 18:14:47:I've posted a URL to a completed auction on ebay (EVERYTHING is on ebay sooner or later). for the moment at least there are photos.
In the past people have suggested these were used on still projectors to teach GI Joe how to recognize enemy planes. The chronology doesn't fit (Graflex, Inc and I assume SVE didn't exist during WWII) but I suspect the concept did--allowing fleeting images to be projected on a screen in variying degrees of illumination, ie speed reading. this would account for the barrel and the lack of a rear cell. I have no proof however.
You might want to ask Stephen Shuart, His father worked for the a company that made school AV equipment that eventually got tied in with Graflex (or General Prescision or Singer). His ebay userid is photofinder.