Café Royal Cocktail Book by W. J. Tarling (1937, p.140)

0.33 partrye whisky — rye or bourbon whiskybase
0.33 partdry vermouth — French vermouthmodifier
0.33 partsweet vermouth — Italian vermouthmodifier
  1. Stir and strain into a cocktail glass.

Garnish: Cherry.

See also: Manhattan, Dry, Manhattan, Sweet

A dash of Angostura can be added if desired.