Mounted on thick card and measured about 6½ inches (167 mm) by 4¼ inches (108 mm).
The Cabinet photograph was the standard format for family portraits.
The smaller portraits on thick card which measure about 4 inches (110 mm) by 2½ inches (65 mm)are called Carte d' Visite or CdV for short. Cabinet portraits were replaced by the Postcard format during the Edwardian era..
The Cabinet format is almost three times the size of a Carte d' Visite.
Marr & Co are recorded at this address from 1900.