By the time Max Cohnheim arrived in San Francisco in 1867, at around age 41 — Cohnheim had immigrated to the United States in 1851 — he already was a noted German-language writer, editor, playwright and sometime actor of political satire.

On 17 June 1871, Cohnheim debuted his latest satirical magazine, the San Francisco Humorist. The inaugural issue featured a comic illustration of the Emperor Norton conferring with another well-known street character of the day — a dandy who styled himself The Great Unknown.

It seems likely that the Emperor and the Unknown at least would have been acquainted with one another.

Read on to learn more about the Great Unknown and to see this early illustration of Emperor Norton — an illustration, drawn during the Emperor’s lifetime, that probably has lain in obscurity for decades and probably has seen by very few people at all since it first was published nearly 150 years ago.