Café Royal Cocktail Book by W. J. Tarling (1937, p.114)

0.25 partgin base
1 dashOrgeat — orgeat syrupbase
1 dashorange bitters bitter
0.25 partdry vermouth — French vermouthmodifier
0.25 partsherry modifier
0.25 partsweet vermouth — Martini sweet vermouthmodifier
  1. Mix and strain.

Lineage reconciliation

See also: Inca Cocktail