Definitions

1. noun

A duplicate or copy, especially one made from a photograph.

“The artist created an authotype of the original painting to preserve its beauty.”

2. noun

A photographic print made by the photographic process of the same name, using a photographic paper coated with silver chloride that darkens when exposed to light.

“The museum exhibited an authotype of the famous photograph, taken by the renowned photographer in the 19th century.”