keyshape

These were actual X-ray plates -- chest cavities, spinal cords, broken bones -- rounded at the edges with scissors, with a small hole in the centre and grooves that were barely visible on the surface. Such an extravagant choice of raw material for these 'flexidiscs' is easily explained: X-ray plates were the cheapest and most readily available source of necessary plastic. People bought them by the hundreds from hospitals and clinics for kopeks, after which grooves were cut with the help of special machines (made, they say, from old phonographs by skilled conspiratorial hands).

The 'ribs' were marketed, naturally, under the table. The quality was awful, but the price was low -- a rouble or rouble and a half. Often these records held surprises for the buyer. Let's say, a few seconds of American rock'n'roll, then a mocking voice in Russian asking: "So, thought you'd take a listen to the latest sounds, eh?", followed by a few choice epithets addressed to fans of stylish rhythms, then silence.


From Artemy Troitsky's Back in the USSR: The True Story of Rock in Russia(1987, Omnibus Press) via here but originally posted by a collector here.