Cocktails Bar La Florida by Constante Ribalaigua Vert (1934, p.135)

1 small peellemon peel acid
0.33 partrye whiskey base
1 dashAngostura bitters — Angosturabitter
1 teaspoonAmer Picon modifier
0.5 teaspooncuracao modifier
0.5 partvermouth — Martini Rossi vermouthmodifier
0.5 teaspoonsugar sweetener
  1. Shake well and strain into a cocktail glass.

Ice: Cracked ice