Patent #2105365 Granted To Roberto Pancotti of Nutley, NJ, Assignor to Excelsior Accordion Manufacturing Co. for an Alleged New and Useful Improvements in Devices For Accordions
[rk. 3]
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Modern 350 Accordion By Excelsior
[rk. 4]
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1952 Ad Excelsior Symphony Grand Accordion Pee Wee King - Original Print Ad