Physical description: mounted on the same piece of paper as Schaaf number 4277
Inscription: in ink above print, R / No 1; in ink below print, Direct positive process of the Specification (2nd part); in ink to right of pint, 4 minutes in camera / Specimen made by Mr Talbot Dec. 1. 1854
This experimental photograph shares a mount with a second photograph of the same subject (Schaaf number 4277). This photograph is by Nicolaas Henneman, while the second print on the same mount is by Talbot.
The collodion process was invented by Frederick Scott Archer in 1848 and published his results in, The Chemist, in March 1851. The two experimental collodion photographs by Henneman and Talbot date from 1854.