Angostura Bitters Centenary Gift Book of Cocktail and Other Recipes by Angostura Bitters (Dr. J. G. B. Siegert & Sons) Limited (1924) — Angostura Centenary 1924, three equal parts gin and vermouths

1 twistlemon peel — Source says a piece of twisted lemon peel is a great improvement.acid
3 dashAngostura bitters base
0.33 partLondon dry gin — ginbase
0.33 partdry vermouth — French vermouthmodifier
0.33 partsweet vermouth — Italian vermouthmodifier
  1. Combine the three equal parts with Angostura Bitters.

Garnish: Twisted lemon peel

The Artistry of Mixing Drinks by Frank Meier (1936, p.42)

0.33 partgin — Ginbase
0.33 partdry vermouth — French Vermouthmodifier
0.33 partsweet vermouth — Italian Vermouthmodifier
  1. Stir well and serve.

Café Royal Cocktail Book by W. J. Tarling (1937, p.208)

0.33 partdry vermouth — French Vermouthbase
0.33 partgin — Dry Ginbase
0.33 partsweet vermouth — Martini Sweet Vermouthmodifier
  1. Shake and strain into cocktail glass.

Lineage reconciliation