Angostura Bitters Centenary Gift Book of Cocktail and Other Recipes by Angostura Bitters (Dr. J. G. B. Siegert & Sons) Limited (1924) — Angostura Centenary 1924, three equal parts gin and vermouths
| 1 twist | lemon peel — Source says a piece of twisted lemon peel is a great improvement. | acid |
| 3 dash | Angostura bitters | base |
| 0.33 part | London dry gin — gin | base |
| 0.33 part | dry vermouth — French vermouth | modifier |
| 0.33 part | sweet vermouth — Italian vermouth | modifier |
- Combine the three equal parts with Angostura Bitters.
Garnish: Twisted lemon peel