L'Art du Shaker by Dominique Migliorero (1925, p.9)

0.5 partsherry — Sherrybase
0.5 partItalian vermouth — Vermouth Turinmodifier
  1. Stir cold and serve.

Barflies and Cocktails by Harry McElhone and Wynn (1927, p.15) — Barflies 1927

1 dashorange bitters — Orange Bittersbase
0.67 partItalian vermouth — Italian Vermouthmodifier
0.33 partsherry modifier
  1. Stir and strain into a cocktail glass.

This matters because it keeps the low-proof sherry aperitif line fully alive in a major late 1920s Paris source.

Cocktails by Piero Grandi (1927, p.24)

1 dashorange bitters — Source says a thread or dash.base
0.33 glasssherry — Sherrymodifier
0.67 glasssweet vermouth — Vermouth Italienmodifier
  1. Combine the ingredients, mix well, and serve in a cocktail glass.

370 Recettes de Cocktails by Jean Lupoiu (1928, p.10)

1 dashorange bitters — Bitter Orangebase
0.33sherry — Sherry Sandemanmodifier
0.67sweet vermouth — Vermouth Cinzanomodifier
  1. Stir the ingredients with ice and strain into a cocktail glass.

Cocktails by Pedro Chicote (1928, p.98) — Pedro Chicote 1928

orange bitters — Source gives a few drops.base
0.67 partItalian vermouth — Vermut italianomodifier
0.33 partsherry — Jerezmodifier
  1. Shake with chopped ice and strain into a cocktail glass.

Ice: Chopped ice

This matters because it gives us a Spanish-language control version of the mature Adonis aperitif line.

The Art of Mixing by James A. Wiley and Helene M. Griffith (1932) — Wiley 1932, opening A-B recipe run

1 dashorange bitters base
0.33 partsherry modifier
0.67 partsweet vermouth — Italian Vermouthmodifier
  1. Mix with a little ice.

See also: Sherry Cocktail, Bamboo Cocktail