© 2005 P. Missin - Details

US Patent 360857

Awarded in 1887 to Arthur F. Crandall of Iowa, this patent is for what could be described as the Victorian equivalent of the Leslie speaker. The player inserted a harmonica into the slot of the top of this device, then as they played they turned the handle on the side. This was connected to a fan mounted on a spindle:

This added a tremolo effect to the tone of the harmonica.

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