I'm not either but I did stay at a Holiday Inn Express one night.

The model 1840 was 44in long with a 35in blade and weighs roughly 2.5 lbs. The model 1860 was lighter and was 41 inches long with a 35 by 1 in blade and weighed 2 lb.
@ConfederateCanuck is correct on the why it was called a Wrist Breaker.
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photos courtesy of Harry Ridgeway