This was an add on peripheral board from a 1982 TI 99/4 computer peripherals extension box. The board itself was in an aluminum enclosure
This is where the ribbon cable attached to the board, just sort of pressed together into all those tiny pins, which fell out easily enough
Here is a closer look at the pins. At first they just appeared to be polished steel, stainless I thought, but after one fell out it looked like these
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