Café Royal Cocktail Book by W. J. Tarling (1937, p.104)
| 0.33 part | gin — Seager's gin | base |
| 0.33 part | Vodka — Latvian rye vodka | base |
| 0.17 part | grapefruit juice — fresh grapefruit juice | garnish |
| 0.17 part | Cointreau | other |
- Shake.
Green Park is Seager's gin, Latvian rye vodka, Cointreau, and fresh grapefruit juice.
Café Royal Cocktail Book by W. J. Tarling (1937, p.104)
| 0.33 part | gin — Seager's gin | base |
| 0.33 part | Vodka — Latvian rye vodka | base |
| 0.17 part | grapefruit juice — fresh grapefruit juice | garnish |
| 0.17 part | Cointreau | other |
See also: Park