Holy "Tung Sol" Batman ! This is the extended life version of the General Electric #47 bulb, new, old stock, circa 1950, bayonet brass base, and yes has the U.S.A. stamped in the brass, spec sheet denotes a 5000 hour lifespan. These have some storage patina "build up", but the last two photos show how nicely they clean up with a wire brush. ( We suggest cleaning these before use, to insure they make a clean connection / contact with the bulb receptacle - this way they will not flicker ). We test each bulb before shipping.
Please Note: our shipping calculator is not very accurate, ...please know we will refund any shipping difference if the shipping cost is over the top, or include an extra component if the difference is near equal.
