portrait of a girl with book
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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 shows a young girl holding a book. The back layer is coming away giving it a 3D appearance.
portrait of a girl with book. top right hand corner is broken, and the back layer is damaged and coming away giving a 3D appearance
Materials and Techniques
Height: 82 mm print, Width: 70 mm print
Tinted; Anon. Portrait of a young girl, 1/2 length, hoding a book in her left hand, 1850s
Prints, Drawings & Paintings Collection