El Bar Americano en España by Pedro Chicote (1927, p.113)

1 lemonjugo de limón — jugo de un limónacid
1 tablespoonazúcar en polvo — 1 cucharada grande de azúcar en polvobase
agua natural filtrada — agua natural filtrada muy fríadilution
1 slicerodaja de limón — rodaja grande de limóngarnish
  1. Build in a large crystal glass with powdered sugar and lemon juice.
  2. Fill with very cold filtered still water.
  3. Serve with a large lemon slice pierced by two straws.

Garnish: Large lemon slice and two straws