Cocktails by "Jimmy" late of Ciro's London by Jimmy (1930) — Jimmy 1930, opening A-B recipe run

1 partLondon dry gin — Plymouth Ginbase
1 dash per cocktailAngostura bitters bitter
1 partdry vermouth — French Vermouthmodifier
  1. Mix with plenty of cracked ice and shake well, following the book's general cocktail instruction.

Café Royal Cocktail Book by W. J. Tarling (1937, p.42)

1 dashAngostura bitters base
0.67 partgin — Plymouth ginbase
0.33 partdry vermouth — Martini dry vermouthmodifier
  1. Shake and strain.

See also: Blenheim