Captain Graham and Captain MacLeod, 42nd Regiment. Dated: 1855. Dimensions: sheet (trimmed to image): 18.1 x 16.2 cm (7 1/8 x 6 3/8 in.) mount: 59.6 x 44.1 cm (23 7/16 x 17 3/8 in.). Medium: salted paper print from collodion negative mounted on paper