Sealed beam headlights were introduced in 1939. They were mandated for use on all autos sold in the USA in 1940
1950 Chevrolet 3100 (Ol' Roy)
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)
Gene - I think what you've got there is a GMC "Cannonball" COE headlight assembly. Very much looks like the ones in these screen grabs I found looking through 1947-59 "Cannonball" pictures. They all look to have that flat mounting surface, so hard to tell without more details, like if there are any part numbers anywhere, that we could research further to nail down the year(s).
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
