The Artistry of Mixing Drinks by Frank Meier (1936, p.61)

0.5 glassgin — Ginbase
0.5 lemonlemon juice — Lemon juicebase
Soda water — Soda waterdilution
3 sprigsmint — Mint sprigsother
1 teaspoonsugar — Sugarsweetener
  1. Shake with ice, strain into a fizz glass, add soda water, and serve.

Ice: Ice

Café Royal Cocktail Book by W. J. Tarling (1937, p.226)

1 glassgin — Dry Ginbase
0.5 lemonlemon juice — Lemon Juicebase
Soda water — Syphon Soda Waterdilution
2 sprigmint — Mintother
1 teaspoonsugar — Powdered Sugarsweetener
  1. Strip the leaves from two sprigs of mint, place in a cocktail shaker with cracked ice, sugar, lemon juice, and gin, then shake and strain into a tumbler and fill with syphon soda water.

Ice: Ice