Bamboo Cocktail (Boothby's 1908 recipe)
Lemon zest twist (discarded) & olive - preferably pimiento-stuffed ('pimola' olive)
STIR all ingredients with ice and strain into chilled glass.
[['4.5 cl', 'Martini Extra Dry vermouth'], ['4.5 cl', 'Fino sherry'], ['2 dash', 'Orange Bitters by Angostura'], ['2 drop', 'Angostura Aromatic Bitters']]
[['4.5 cl', 'dry vermouth'], ['4.5 cl', 'fino sherry'], ['2 dash', 'angostura'], ['2 drop', 'angostura']]