Café Royal Cocktail Book by W. J. Tarling (1937, p.164)

3 dashesFernet Branca base
0.33 partgin — Booth's ginbase
0.17 partcuracao — curaçaomodifier
0.33 partdry vermouth — French vermouthmodifier
0.17 partCointreau other
  1. Mix.

Invented by B. Paul.