The codes are identical on both tubes, B0A4, and they were made in 1960. It test good and balanced at 15.0 + 15.0 and 16.0 + 18.0mA where 15.0mA is the nominal value for an unused tube. They are also tested good for gas, leakage and shorts. Excellent tubes in both apperance and performance! I always stand behing my items.
If there should be any problem what so ever just contact me and we'll solve it. I dont end my items early, if not a BIN appear, so please dont ask.