Circa: Unknown Condition: Used & Operational Size: 3 1/8 inch long by 1.5 inch diameter at widest end Country of Origin: United States Manufacturer: Bell & Howell
Made In the USA: This item is a Bell & Howell projector zoom lens. It has a range of 20mm to 32mm. It will fit many of the movie projectors of the 50's and 60's. Check the photos closely and if this lens looks like the one from your machine, then this is the correct replacement zoom lens if you need one.
The barrel (small end) of the lens measures exactly 1 inch across. The single groove on the barrel measures exactly 3/4 inch from the end of the lens.