Chill a coupe glass.
Combine the Old Tom gin and dry vermouth in a mixing glass.
Add two dashes of Bénédictine and two dashes of orange bitters.
Add ice and stir for 25 seconds.
Strain into the chilled coupe and express an orange twist over the surface.
From Hugo Ensslin's Recipes for Mixed Drinks, 1917. It is a martini from before the martini got dry — Old Tom gin is lightly sweetened, and the whole drink sits in that older, gentler register.
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