The Old Waldorf-Astoria Bar Book by Albert Stevens Crockett (1935, p.94)

1 jiggerspirit — whiskey or brandybase
milk — fill three-quartersdilution
ice — Iceother
on topnutmeg other
0.5 spoonsugar sweetener
  1. Shake well, strain, and serve with nutmeg.

See also: Whiskey Milk