The Old Waldorf-Astoria Bar Book by Albert Stevens Crockett (1935, p.62)

1 dashorange bitters base
Soda water — siphon waterdilution
1 jiggersweet vermouth — Italian vermouthmodifier
  1. Shake the vermouth and bitters.
  2. Fill the fizz glass from siphon and serve.

Ice: Ice

See also: New Orleans-style