The Old Waldorf-Astoria Bar Book by Albert Stevens Crockett (1935, p.43)

0.5 partOrange gin — Orange ginbase
0.5 partdry vermouth — French vermouthmodifier
1 whiteegg white other
  1. Build the orange gin, French vermouth, and egg white.
  2. Serve in a cocktail glass, optionally with a cock's comb.

Lineage reconciliation

Cock's comb optional.