Milliamps of current. But without knowing which tester it is and how recently calibrated, those values are mainly for infotainment. Even still the sections are not well-balanced for NOS, but likely not audible. What's the asking price for the '85?
Short answer: you don't. Long answer, it depends on the tester, its condition and calibration. Ask
@bcowen to test it for you. If it's really good, he might let you visit it on weekends. That's why it's not a bad thing to purchase from a seller with a good rep and return policy. And never send your tubes to
@bcowen for testing.
Oh boy... generally, earlier is better with most tubes. Early production was Q/A'd more stringently by the engineers, later production runs were generally more stringently monitored by the cost accountants.
In the WE 396A my preference is production from the 50s and 60s. Getting NOS of that vintage is rare and worse... pricey. However, a good used tube of that era can be both a good deal and offer hundreds, even thousands of hours of enjoyment in the Vali.
Tube life becomes less of a concern once one
hoards collects and rolls many tubes. 396A is a great tube, but so is the RCA Command 5670, TS 2C51, 6CC42, GE 5-Star 5670, Bendix 6385 and 50s-60s 6N3P. To name just a few.