Matched pair of old stock Fisher branded Telefunken 12AX7/ECC83 smooth plate, halo getter tubes. On my calibrated Hickok 533A tester, these tested excellent/good with no shorts at:
tube 1: 1250/1200
tube 2: 1200/1150
where 1250 is considered new.
These are genuine old stock Telefunkens as shown by the etched diamonds in the bases, along with the obvious wear of the lettering which is so delicate on these tubes.
The Telefunken smooth plate halo getters are my personal favorite 12AX7, and you will not be disappointed with these.
Buy with confidence from a long standing audiogon member, and feel free to ask questions. Thanks for looking!