Been playing with sunprints in anticipation of hopefully doing some self made cyanotypes. These were reject images initially so happy to experiment with them. They have been variously bleached and toned. Some interesting results.
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X-ray plates and Bootleg Music
Found this in the BMJ. Not sure what it has to with illustration but think it is great. About bootleg music during the cold war era in the Soviet Union. X-ray plates were used and the grooves cut into the disc. They were called 'bones" or "ribs".