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

lemon juice — Lemon Juiceacid
2 measureCaloric Punch base
Soda water — Syphon Sodadilution
1 teaspoonGrenadine — Grenadinesweetener
  1. Shake and strain into a medium size glass, then fill with syphon soda.