You are bidding on a pair of type 245 globe shaped radio amplifier tubes with hot stamped bases. The brands are Ken-Rad and Super Airline. On my Amplitrex AT-1000 tester, one tests at 75% emission, and 101% Gm, while the other tests at 85% Em and 95% Gm. On the TV-7D/U they test at 67 and 66 where the minimum is 47 for a good tube. I believe both are good strong useable tubes. They are not quite identical, but very similar tubes based on their internal structure. These are the same as RCA Radiotron UX 2454, Cunningham CX 345, or the later ST shaped type 45 tubes. They should make a good sounding pair! Shipping weight is 1 pound. Please see my other auctions for more interesting tubes and radio and audio items.