El Bar Americano en España by Pedro Chicote (1927, p.148)

1 copitadry gin — 1 copita de dry ginbase
ice — 3 ó 4 pedacitos de hielobase
10 dropsAngostura bitters — 10 gotas de Angosturabitter
1 slicerodaja de limón — 1 rodaja de limóngarnish
1 coffee spooncuraçao rojo — 1 cucharada de las de café de curaçao rojomodifier
1 copitavermut — 1 copita de vermutmodifier
  1. Build in a whisky glass with ice, Angostura, red curaçao, vermouth, and dry gin.
  2. Stir well with a long refreshment spoon, add a lemon slice, and serve in the same glass.

Garnish: Lemon slice

Ice: Ice