So I finally got in two of my latest purchases - one took almost a month. Got a Strand #3480 8" Fresnel from 1989 that was missing lens and yoke. No big deal on the lens. On the other hand, Photometrics Handbook has a photo of the yoke shape and knob, but isn’t enough detail about the clutch break assembly in use. Strand Archive is useless for this fixture Can anyone provide a photo of this assembly? They / Leviton still make this fixture or similar ones to get parts? Otherwise I have fabricated clutch breaks before, just need a good photo to start with. Second photo I need is for a c.1950 #1365E Kliegl 6x16, in fairly good condition and it is a link between the c.1936-1950 #1165B and c.1978 #1355 both in stock now thanks to Derek’s lenses and some fabrication. This #1365E even came with a curious purple painted base and working T-14 bi-pin lamp I thought I would never see. Only one thing missing or confusing: At the top of the lamp cap is a 1/4-20 threaded tip to it which I think is like the center screw to an Altman #360 series like lamp cap lamp height adjustment/lock down. Seemingly there is by design either no way to raise or lower the lamp - other than by pivoting it with the short 3/4" bench focus screws, or this perhaps broken off knob or screw with the stud part remaining inside the cap was that adjustment. My question is what did this height adjustment knob or screw look like and how did it work? Single screw or a screw pushing a stuck post? Can anyone send me photos and details? Need a Circle K lamp cap for the above #1355 if anyone has an extra by the way.