Harry of Ciro's ABC of Mixing Cocktails by Harry of Ciro's (1923, p.70) — Guido, Cafe de Paris, Monte Carlo
| 0.5 glass | gin | base |
| 0.5 glass | Italian vermouth — Italian Vermouth | base |
| 1 dash | orange bitters — Orange Bitters | bitter |
| 0.5 glass | French vermouth — French Vermouth | modifier |
| 1 teaspoonful | white creme de menthe — White Mint | modifier |
- Shake well and strain.
This matters because it preserves a named Monte Carlo mixed-vermouth aperitif branch in the London 1923 field.
The white-mint modifier is the main point separating it from plainer mixed-vermouth gin drinks.