3 1/4 inch (80 mm) F15 coated air-spaced achromat I purchased in the 1970Õs, mounted in cell. The aluminum tube is about 40 inch long, unfinished outside, and blackened inside w 2 baffles. Original 1.25 in R&P focuser.
There are 2 small scratches (about 1/16 inch long) towards the outer edge on one of the inner surfaces. Should have no detectable effect on the image. Otherwise the lens is in excellent condition. Lens cell is attached to a home-made push-pull system for collimation (see photo).
The GEM is from the same era. Some rust, but perfectly usable. About 48 inches tall to the bottom of GEM head.
$80 plus shipping. The GEM is probably not worth shipping. If buyer just wants the OTA, I will give away the GEM for free local pickup (San Francisco Bay Area).