Café Royal Cocktail Book by W. J. Tarling (1937, p.153)
| 0.25 part | lemon juice | acid |
| 0.25 part | gin — Booth's dry gin | base |
| 0.25 part | Scotch whisky — Scotch whisky | base |
| 1 dash | sweet vermouth — Martini sweet vermouth | modifier |
| 0.25 part | Cointreau | other |
- Shake.
Invented by H. G. Yarrow.