VGC, sheet music, part of the Gibson "Mastertone System for Steel Guitar" series, copyright 1939, showing a trio on the front cover: 2 women on steel guitars and a man playing an ES-150, on the back cover is a pitch "Stop Look and Listen"
VGC, sheet music, part of the Gibson "Mastertone System for Steel Guitar" series, copyright 1939, showing a trio on the front cover: 2 women on steel guitars and a man playing an ES-150, on the back cover is a pitch "Stop Look and Listen"