Swallows / Boothby's World Drinks and How to Prepare Them by Hon. Wm. T. Boothby (1930) — Boothby Swallows 1930, opening cocktail run

2.5 jiggerLondon dry gin — Ginbase
0.5 jiggerdry vermouth — French Vermouthmodifier
  1. Shake well with ice, strain into a chilled cocktail glass, twist orange peel over, and serve.

Garnish: Orange peel