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Photograph (Experimental Photogenic Drawing, Varnished Double Negative), by Sir John Herschel, 1839

preview image for Photograph (Experimental Photogenic Drawing, Varnished Double Negative), by Sir John Herschel, 1839
Inventory Number: 27282
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 but 1839, consisting of two nearly identical negatives stuck together and oiled or varnished, for use as a negative in 're-reversal' or 'transfer' (positive printing) experiments. Compare other double negative 87974.

Subject: engraving 63470, lady with beads
Technique: contact copy
Format: vertical
Polarity: negative
Orientation: laterally reversed
Quality: xxx, image darkened by varnish but good
Colour: xxx
Chemistry: silver based, hypo fixed
Coating: joined by adhesive [probably canada balsam], oiled or varnished
Inscription: none visible
Paper: xxx
Condition: extremely fragile due to the embrittling effect of the varnish, xxxxx, one small fragment (from bottom left corner)
Purpose: two negatives have been stuck together to enhance contrast, and oiled or varnished for better translucency, in order to be used as a negative in experiments with making positive copies (prints).

For fuller descriptive and historical commentary see narratives.
Primary Inscriptions:
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:
Height Width Depth Diameter Unit
127 100 mm

Narratives

Image with multimedia irn 18472

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