General Olds Ads or Ads featuring multiple models
From the July 1937 issue of Downbeat. The instruments all appear to be Standard models.
An ad in the October 1939 issue of Metronome promoting 3 new models: the Featherweight trombone, the French horn and the Radio cornet!
An dd in the February 1945 issue of the School Musician already promoting post-war brasses!
August 15, 1945 issue of Downbeat showing a Super trumpet and encouraging post-war orders!
