1857—Manchester, England
An advertisement for manufacturer Joseph Higham includes the following entry: “16 Trombone. Alto. F or E-flat. German Silver slides.” The number corresponds to a graphic of a trombone that is the shortest in a grouping of three slide trombones (see below image; public domain) (The Strangers Guide to Manchester, with a Map of the Environs, and Illustrations of Public Buildings 63).