Prison ring

A prison ring is a type of plastic jewelry fashioned by hand in prisons, by working scrap plastic material, commonly celluloid items such as a toothbrush or a pen.[1]

References

  1. ↑ Leigh Leshner (28 February 2011). Collecting Art Plastic Jewelry: Identification and Price Guide. Krause Publications. pp. 9–. ISBN 978-1-4402-2751-6. Retrieved 26 August 2012.