Long model Z Shape Martin Band Instrument Company  The 1912 Martin catalog claims that the “Long” model cornet, with its “Z” shaped lead pipe Elkhart/Indiana/USA

Imperial #1367xx Martin Band Instrument Company  c.1940 Elkhart/Indiana/USA

Troubadour #999xx  Martin Band Instrument Company  c. 1930 Elkhart/Indiana/USA

#1015xx Troubadour  [DeCarlis] Martin Band Instrument Company  c. 1931 Elkhart/Indiana/USA