Harry of Ciro's ABC of Mixing Cocktails by Harry of Ciro's (1923, p.60) — Harry of Ciro's 1923

0.5 partOrange juice (fresh) — Orange Juiceacid
1 dashAbsinthe base
0.5 partdry gin — Gordon Ginbase
1 teaspoonfulGrenadine sweetener
  1. Shake well and strain into cocktail glass.

This matters because it gives us a clean London 1923 Monkey's Gland checkpoint close to the author's claimed invention period.

The orange-juice and absinthe combination is the defining structural point.

See also: Orange Blossom Cocktail, Gloom Raiser