carbon print

English

Noun

carbon print (plural carbon prints)

1. (photography) an early photographic print made by soaking a carbon tissue in potassium bichromate
   • 1913, D[avid] H[erbert] Lawrence, “chapter 10”, in Sons and Lovers, London: Duckworth & Co. […], →OCLC:

     It was a small, stuffy, defunct room, of mahogany, and deathly enlargements of photographs of departed people done in carbon.