Your knowledge of surveying instruments is somewhat impressive uco…
I have a small collection of them. I hope to be able to get a complete T-4 sometime.. but I may have to go to Germany to get one. I have a T-3, T-2 as well as a Kern DKM3A, DKM3, DKM2AC, DKM1 and two Zeiss(s). I also have several American manufactured transits from the 1900’s to 1940’s including Gurley, Buff & Buff, CL Berger, K&E, David White (of these, I tended to find the Buff & Buff and CL Berger to be surprisingly stable). I also managed to acquire an old Troughton-Simms from the 1800s, including its tripod.
Its what I call an expensive hobby. My interest got ‘re-awakened’ when my father died and I inherited his David White 8300 level transit. I was the one who did most of the work with it when we were laying out for the property and doing contours when we were building houses. Most of my ‘collection’ are in working condition and those that aren’t, can be put in working condition fairly quickly. I also know how to field cal most of them.
