Daly's Bartenders' Encyclopedia by Tim Daly (1903, p.79)

0.5 glassice — fine icebase
1 wine glassLondon dry gin — London Dry Burrough ginbase
2 dashesAromatic bitters bitter
1Olive garnish
1 dashBenedictine — benedictinemodifier
  1. Half fill a mixing glass with fine ice and add the aromatic bitters, Benedictine, and London Dry Burrough gin.
  2. Spoon well, strain into a cocktail glass, put in an olive, and serve.

Garnish: Olive.

Ice: Fine ice

This is a useful London-dry aromatic checkpoint from a period when specific gin identities were still often named.

The drink's dry stirred structure is the main point rather than any showy garnish or lengthening.

See also: Imperial Cocktail, Olive Cocktail