I don’t have a huge collection of Chaplin Hand Planes, but I’ll share what I have.

Chaplin Patented planes were manufactured by Towers & Lyon of New York between 1872-1900.

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This plane is from US Patent: 126,519 issued to Orril R. Chaplin – Boston, MA Granted: May 07, 1872. In the photo above, the two planes on the left are from this patent.

Then John J. Tower – New York, NY patented an improvement, US Patent: 179,494

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Note this style doesn’t have a lateral adjustment mechanism. This style is usually seen with a hardwood knob and tote.


 

US Patent: 716,386 granted to Maschil D. Converse – New York City, NY, Granted: Dec. 23, 1902, Assignees: John J. Tower – Montclair, NJ.

This next one is known as the Chaplin Improved Patented Plane.

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A Chaplin Block

Some additional information here