1960's PERIOD MANUFACTURE BY THE LOOKS OF IT
DIMENSIONS:
O/D = 1.400"
THREAD DIAMETER = 1.250"
TOTAL DEPTH = 1.166"
ALSO SEE PHOTOS....
THIS CAME FROM A MOTOR FACTORS THAT CLOSED AFTER 72 YEARS OF TRADING AND WERE ON A SHELF IN THERE
I ONLY SELL NEW OLD STOCK PARTS, NOTHING REMANUFACTURED EVER
SMALL RED THREADED LENSE 1.250