Added the below entry to the Alto Trombone History Timeline. Lyon & Healy, a Chicago company that later specializes in manufacturing harps, offered numerous models of alto trombones, both slide and valve, all pitched in E-flat. Several other companies, including Zimmerman (Germany), Boosey & Co. (England), Sears & Roebuck (US), and Montgomery Ward (US) offered multiple models of E-flat alto trombones in the late 19th century.

1894—Chicago, Illinois: The catalog for Lyon & Healy, an instrument distributor and manufacturer, advertises numerous valve alto trombones, all specified as E-flat instruments. Several bear a resemblance to valve alto trombones offered by other US distributors during the same time period, such as Montgomery Ward and Sears & Roebuck (see 1895, 1897) (Lyon & Healy 1894, 35, 39, 43, 50). In addition, the catalogue offers a slide alto trombone in E-flat, not pictured (Lyon & Healy 1894, 53).