Harry of Ciro's Mayfair Cocktail combines gin, orange juice, apricot, and syrup flavored with clove.
Harry of Ciro's ABC of Mixing Cocktails by Harry of Ciro's (1923, p.60) — Embassy
| 0.5 part | Orange juice (fresh) — Orange Juice | acid |
| 1 part | gin | base |
| 3 or 4 dashes | apricot brandy — Apricot | modifier |
| Clove syrup — Clove-Flavored Syrup | sweetener |
This matters because it preserves a lightly spiced London house cocktail branch instead of only the more famous canon entries.
The clove-flavored syrup is the distinctive source-specific feature.
L'Art du Shaker by Dominique Migliorero (1925, p.43)
| 0.5 part | orange juice — Orange juice | acid |
| 2 dash | apricot syrup — Apricot syrup | base |
| 0.5 part | dry gin — Dry gin | base |
Attributed in the book to Robert Vermeire.
Barflies and Cocktails by Harry McElhone and Wynn (1927, p.51) — Recipe by Robert, Embassy
| 0.5 part | orange juice — Orange Juice | acid |
| 0.5 part | gin | base |
| 3.5 dashes | apricot syrup — Apricot Syrup | sweetener |
| Clove syrup — Clove Syrup | sweetener |
This matters because it preserves a named London hotel-bar orange-and-apricot gin branch in the late 1920s.
See also: Orange Blossom Cocktail, Princess Mary Cocktail