This is the untrimmed version of the cut oval image that is in the Princeton registry. The number '81' in a circle at the very bottom right corner. Very rare and a beautiful, rich print.
The picture is of Dodgson's Uncle Hassard and Aunt Caroline with six of their ten children playing Whist; one son died in infancy. The children here are Louis Henry (b.1836), Charlotte Mary (b.1839), Amy Menella (1842-1922), Menella Frances (b.1848, and Laura Elizabeth (b.1853).
See: Taylor and Wakeling, Lewis Carroll, Photographer (Princeton Univ., 2002), p.210, P(3):73.