An inked inscription verso in a period hand reads: 'Le Major / Chien éspagnol / Détaché au 6eme Régiment des Lanciers' [English: 'The Major / Spanish dog / Attached to the 6th regiment of Lancers'].
A pencilled inscription above this in a different hand reads: 'M. Gavart / abbé, ex-officier'.
Photographer and location unidentified.