7dp4 crt NOS

[dieseljeep]

I looked at that listing too. the code date actually was 3/48 which meant 1953, 48th week. It was recent manufacture. RCA stamped the warrantee code date on the face of the locating key on all their replacment CRT'S. That tube wasn't that big of a seller so it doesn't seem unresonable that it was a year old when it was shipped.