Cocktails Bar La Florida by Constante Ribalaigua Vert (1934, p.146)

0.25 partgrapefruit juice — grapefruitbase
0.5 partsloe gin — Gordon sloe ginbase
1 teaspoonMaraschino liqueur — maraschinomodifier
0.5 partsweet vermouth — Martini Rossi vermouthmodifier
  1. Shake very well with cracked ice and strain.

Garnish: A few almonds

Ice: Cracked ice