I have recently acquired a Shulze & Billerbeck Euryplan lens in barrel. Prior to purchasing it I did a bit of research and although I was unable to find much I did determine that the Euryplan was a type of double anastigmat. Since receiving the lens, which is in excellent condition, I have found more info about this type of optic, some describing it as a plasmat, some as a symmetrical, and some as a double anastigmat. I'm confused as to what this lens is. I've removed the front and rear elements but cannot get the glass out of the brass mounts.

Although they originated elsewhere earlier, the date that Shulze and Billerbeck was operating in Gorlitz was between 1910 and 1916.

I've mounted the lens on a board and when some 5x7 film arrives I'll be able to test it out. I'll also have to mount the Packard shutter I purchased for it.