The photo is pasted on the passe-partout. Photo: 17 x 22 cm. Passe-partout: 20.7 x 26.4 cm.
Duke Mikhail Georgievich Mecklenburg-Strelitzky (Karl Michael Wilhelm August Alexander) (1863–1934) was the son of Duke George of Mecklenburg-Strelitzky and Grand Duchess Ekaterina Mikhailovna Romanoff and the great-grandson of Emperor Paul I.