L'Art du Shaker by Dominique Migliorero (1925, p.31)

2 pieceice — Icebase
2 dashAngostura bitters bitter
2 dashcuracao — Curacaomodifier
0.5 bottleginger beer — Ginger beerother
1 long zestlemon zest — Lemon zestother
  1. Build in a large tumbler, stir, and serve.

Garnish: Lemon zest

Ice: Ice

Cocktails by Pedro Chicote (1928, p.158) — Ginger beer lengthened

1 piecelemon peel — Corteza de limonbase
7 dropsAngostura bitters — Angosturabitter
7 dropscuracao — Source gives 6 to 8 drops.modifier
ginger beer — Cerveza de Gengibreother
  1. Build in a water glass over ice, stir, and serve with straws.

Garnish: Lemon peel

Ice: 2 to 3 pieces ice

This matters because it keeps a bitters-and-ginger-beer cooler branch visible in the Madrid repertoire.

This is a built and stirred long drink rather than a short shaken cocktail.

See also: Horse's Neck, Mamie Taylor