The Old Waldorf-Astoria Bar Book by Albert Stevens Crockett (1935, p.83)

0.67 partgin — Tom ginbase
0.25 lemonlemon juice base
0.33 partrum — Medford rumbase
0.5 ponymilk dilution
Soda water — siphondilution
0.33 spoonsugar sweetener
  1. Shake, strain, and fill from siphon.

Ice: Siphon

Named for the free silver agitation of the 1890s.