Classic Cocktails

Duchess Cocktail (Waldorf-Astoria)

1 dash of orange bitters
1/3 absinthe
1/3 French vermouth
1/3 Italian vermouth 

Stir in iced mixing glass and strain into chilled cocktail glass.

The Old Waldorf-Astoria Bar Book

A Classic Cocktail

Gaby des Lys Cocktail

1 1/2 oz dry gin
1/2 oz orgeat
2 bar spoons absinthe

Frappe with ice. Pour into a cocktail glass.

The Gentleman's Companion, 1946