Other than for the Graflex parts do these have any value?
I don't know what this is...
It looks like like a 4x5" International Back (for a camera back/rear standard unknown to me) with ground glass (and resp.holders) removed
In this case one could use it for any DIY 4x5"-camera project as in such case one one would havev to adapt somehow an International Back anyhow.
It's a factory Polaroid adapter for one of their cameras. I think it converts a Polaroid camera from using strictly Land Film to any 2x3 sheet or 120 roll film with Graflok ease.
BTW, my internet search found nothing. I'm asking because some dedicated Polaroid folks might want these. I have at least three of them. Maybe I should join one or more of the big Polaroid forums and ask there.
I'm about to part these out and junk the Polaroid bits.....