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Photograph - Portrait of a man

Portrait of a man

  • Object:

    Photograph

  • Date:

    1850s (made)

  • Artist/Maker:

    Unknown

  • Materials and Techniques:

    Collodion positive

  • Museum number:

    162-1944

  • Gallery location:

    In Storage

Also known as an ambrotype, the collodion positive was invented by F. Scott Archer in 1822, and was in widespread use by the mid-1850s. To produce a collodion positive, a sheet of glass is hand-coated with a thin film of collodion (guncotton dissolved in ether) containing potassium iodide, and sensitised to the light with silver nitrate to create a collodion negative. The back is then painted black or covered with a piece of dark cardboard or cloth in order to achieve the effect of a positive image.

This collodion positive portrait (ca. 1850) depicts a woman with gilt-detailed jewellery and is cased and gilt-framed.

Physical description

Collodion positive portrait of a man, depicted half length, head resting on left hand, looking to his half left

Date

1850s (made)

Artist/maker

Unknown

Materials and Techniques

Collodion positive

Descriptive line

Anonymous collodion positive photograph, hand-tinted in a pinchbeck mount and case, depicting a portrait of a man, ca. 1850s.

Materials

Card

Techniques

Collodion

Subjects depicted

Portraits

Categories

Photographs; Portraits

Collection

Prints, Drawings & Paintings Collection

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