Jack's Manual by J. A. Grohusko (1910, p.44)

0.75 portionHolland gin — Source gives 75% Holland gin.base
1 glassSoda water — carbonic waterbase
0.15 portionFrench vermouth — Source gives 15% French vermouth.modifier
0.1 portionItalian vermouth — Source gives 10% Italian vermouth.modifier
ice — broken iceother
  1. Fill one glass with carbonic water.
  2. Shake the Holland gin and vermouths with broken ice, strain on top of the carbonic water, and serve.

Ice: Broken ice

See also: Bronx Terrace, Champagne Velvet