Portrait of the samurai, Keizaburo Hidaka (日高圭三郎) (1834-1919), during his role as a financial accountant in the first Japanese embassy to Europe between 1862 and 1863. Hidaka is captured with the mandatory male hairstyle of the Edo period with a shaved scalp and topknot. He is dressed in striped hakama trousers and a haori jacket bearing paulownia crests. A smaller sword sits in his belt as he holds a long katana in a sheath with his left hand, and a lacquered hat with Paulownia and circle with parallel lines crests in his right.

The Japanese ambassadors of high-ranking daimyo lords and samurai visited several countries including France, the United Kingdom, the Netherlands, Russia, Portugal and Egypt. The photograph has been attributed to the Italian photographer Leonida Caldesi (1822-1891) who operated in London in the 1850s and 60s before returning to Italy in 1870.

Hidaka was also part of the first diplomatic embassy to the United States of America in 1860.