Jack's Manual by J. A. Grohusko (1910, p.73) — Philadelphia

0.5 portiondry gin base
ginger ale — Top off with ginger ale.dilution
0.1 portionFrench vermouth — French Vermouthmodifier
0.4 portionItalian vermouth — Italian Vermouthmodifier
ice — broken iceother
  1. Shake the dry gin, Italian vermouth, French vermouth, and broken ice.
  2. Strain into an old-fashioned glass, top off with ginger ale, and serve.

Ice: Broken ice

See also: Bronx Cocktail, Postmaster