How is the front plate attached to the glass? I really dig that.
The metal bowl behind the lens has a small flange on it that matches the diameter of the lens. The brass ring with the tightening screw & nut at the bottom clamps the glass lens to the flange. (Sorry about the fuzzy picture of the bowl. The camera just wouldn't focus on it.)
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12 '52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.