Jack's Manual by J. A. Grohusko (1910, p.82)

2 dashesBenedictine base
0.5 portiondry gin base
0.5 portionFrench vermouth modifier
ice — Fill glass with ice.other
  1. Fill the glass with ice and stir the Benedictine, dry gin, and French vermouth.
  2. Strain and serve.

Ice: Ice

See also: Jenks Cocktail, Hudson Cocktail