This gold pin, milspec, low-noise E88CC / CV2492 / 6DJ8 / ECC88 OTK dual triode was tested on our Paul Hart-modified TV7/U for shorts, gas and transconductance. There were no shorts or gas.
6DJ8s are notoriously hard to test on most testers and Paul added ferrite rings to ameliorate this problem.
It measured 64/68 where minimum (65%) is 62/62.
Its silkscreening is excellent and appears to have been done for Mullard. It was manufactured in the Soviet Union as it has 79-46 date codes; a saucer getter; gold pins and excellent flashing.
As I write, I am playing Aphex Twin's “Logan Rock Witch" in my Schiit Audio Vali 2 headphone amplifier and it sounds weird, demented and manic like it should.