The Artistry of Mixing Drinks by Frank Meier (1936, p.31)

1 dashAngostura bitters — Angostura Bittersbase
1 glassgin — Ginbase
1 dashsweet vermouth — Italian Vermouthmodifier
  1. Stir well and serve.

Café Royal Cocktail Book by W. J. Tarling (1937, p.95)

1 measuregin base
5 dashesorange bitters — Cointreau orange bittersbitter
  1. Shake.

See also: Gin Cocktail