Photograph (Experimental Photogenic Drawing), by Sir John Herschel, c.1842 | |||||||||||
Inventory Number: | 12527 | ||||||||||
Object Type: | | ||||||||||
Persons: |
Sir John Frederick William Herschel (Photographer) | ||||||||||
Date Created: | |||||||||||
Accession Number: | 1928-71 | ||||||||||
Brief Description: | Experimental photogenic drawing by Sir John Herschel, undated, probably c.1842. Ferrotartaric acid (and other iron-based sensitisers) were using during the cyanotype and other experiments of 1842, and produced a yellowy colour if not combined or developed with other chemicals. Subject: engraving xxx, two ladies, one standing (left) Technique: contact copy Format: vertical Polarity: negative Orientation: laterally reversed Quality: barely discernible Colour: yellow, darker border Chemistry: iron based using ferrotartaric acid, probably lead acetate Coating: none Inscription: chemical note Paper: xxx Condition: good Purpose: an experiment with iron based sensitising chemistry. For fuller descriptive and historical commentary see narratives. | ||||||||||
Primary Inscriptions: | 'J[?...] | Ferrotc Ac. from Lead free frm Sc[?]' [ferrotartaric acid, ?free from silver; in Herschel's hand]. | ||||||||||
Provenance: | Presented by Miss Herschel and Lady Lubbock in 1928. They were the two surviving and youngest children of Sir John Herschel (Francisca and Constance). | ||||||||||
Collection Group: | Herschel's Photographic Experiments | ||||||||||
Material(s): |
Paper | ||||||||||
Dimensions: |
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Narratives | |||||||||||
Permalink: http://www.mhs.ox.ac.uk/object/inv/12527