Spain: n/a, 1850. A nice example of a Spanish ambrotype photograph. The image is a 2.5 x 2 inches (quarter plate) glass plate held in a gold coloured soft metal frame (3 inches by 2.5 inches) This in turn is held in a leather backing (with some rubbing). some slight surface scratching to the protective glass. A very nice clean image, with a touch of hand colouring to the woman's cheeks. This from a Spanish collection.
Total size: 80 x 72 mm (3¼ x 2¾ inches).

Ambrotype also known as a collodion positive in the UK, is a positive photograph on glass. Each is a unique original that could only be duplicated by using a camera to copy it. Developed circa 1850, by the mid 1860's Tintype and Albumen photographs had superseded the process.