Café Royal Cocktail Book by W. J. Tarling (1937, p.131)
| 0.08 part | lime juice | acid |
| 0.08 part | Campari | base |
| 0.67 part | gin — Gordon's Dry Special gin | base |
| 0.17 part | Dubonnet | modifier |
- Mix and strain into a cocktail glass.
Garnish: Squeeze lemon peel on top.
Invented by E. Angerosa.