Cocktails Bar La Florida by Constante Ribalaigua Vert (1934, p.166)

1 peellemon peel — French lemon peelbase
0.25 partbitters bitter
sparkling water — filldilution
0.75 partsweet vermouth — Martini Rossi vermouthmodifier
  1. Build over cracked ice and serve without straining.

Ice: Cracked ice