A hand-coloured Ambrotype Tintype and Daguerrotype portrait of a woman, taken by an unknown photographer in about 1845. The colour has been rather liberally applied to her cheeks, making her look as if she is blushing.
An ambrotype is comprised of an underexposed glass negative placed against a dark background.
The dark backing material creates a positive image. Photographers often applied pigments to the surface of the plate to add color, often tinting cheeks and lips red and adding gold highlights to jewelry, buttons, and belt buckles.
Ambrotypes were sold in either cases or ornate frames to provide an attractive product and also to protect the negative with a cover glass and brass mat.