Two framed flexi discs from the 1950s Soviet Union where underground samizdat recordings were pressed onto discarded x-ray film for the distribution of jazz music, which was prohibited after WW2.
They are displayed in a light-box frame, illuminated from behind a double-thick board with two beautifully hand-cut circular windows, though sadly no integral sound. Maybe this will do the trick –
For more information see Jazz on Bones: X-Ray Sound Recordings.
