It takes less that two minutes to ID all of the pins. All you need is a DC
    power supply and a current limiting resistor.

My initial thought was that this sounded like a TIL311 (hexadecimal display
with internal logic.  But the missing pins are in the wrong place.)  The
sort of tests being propose will NOT work on that sort of device (of course,
"that sort of device" is pretty rare...)

BillW

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