I just picked up a box of odd lenses at an auction and I'm wondering if anyone has had experience with these: A Polynar Normal Typus C f6.8 190mm This is in what I think is an old IBSOR shutter, but it's labeled ESPI. I get "electronic speckle pattern interferometry" when I Google that - not, I think, what I want. A Graflex PhotoRecord 84mm f3.5 This is in a Heavy Duty Betax #2 The Vade Mecum is a bit vague and only lists the 75mm - lenses removed from equipment. A Wollensak Amaton 35mm f3.5 in an Alphax shutter. This one looks to come from a folder. A Revere Stereo Camera lens board with twin "Enna Chromar" lenses. This last one is up for grabs if anyone wants it to play with. I only see out of one eye at a time and stereo cameras are beyond me. Free for postage. Thanks in advance to all who even think about this stuff.