The description is as follows. It is a 60 MM objective in a brass lens cell. On the cell are these pieces of information........Carl Zeiss (Jena) Nr 11429 B (Indicates Triplet) f-85cm On the eyepiece rack and pinion this information is printed.........Carl Zeiss (Jena) Nr 9426 It has a built in and fixed eyepiece of a 40 MM FL(Kellner) erector system marked with the numerals 7292 and also bears the name, Carl Zeiss (Jena). Total power is 21 X. It has a screw-on lens shade made of brass as well as the lens cell. The eyepiece rack and pinion are also made entirely of brass and are calibrated from 0-180. It is mounted on an alt-azimuth yoke type mounting with very strong pillow blocks for the vertical axis. The two hand controls are set with spring loaded cylinders for hand motion. It has wooden legs and quick release upper end bolts which fit into three molded tripod recievers. Being a thread size that meets no standard today, I have machined the correct thread and made an adapter for 1.25" EP's that can be changed and has not affected the original integrity of the scope. Beautiful diffraction rings. Hardwood tripod. Vintage 1920.
Best offer near $1500 + shipping