Harry of Ciro's ABC of Mixing Cocktails by Harry of Ciro's (1923, p.67) — Harry of Ciro's 1923
| 0.5 glass | lemon juice — Lemon Juice | acid |
| 0.5 glass | Orange juice (fresh) — Orange Juice | acid |
| 0.5 glass | rum | base |
- Shake well and strain into cocktail glass.
This matters because it keeps a very compact rum-and-mixed-citrus branch visible in the London 1923 field.
The value here is the short shaken form without later lengthening or spice additions.