These jugs may have been overruns sold at a discount. To
make the most $$ its best to run things at 99% & discount
what you dont need. Look at the socket for any clues.
EIA numbers may have been scrubbed. If you are selling say Zenith / Rauland
jugs Z/R would NOT want it to get out that you could buy them at
half price !
73 Zeno
LFOD !