L'Art du Shaker by Dominique Migliorero (1925, p.65)

0.33 partgin — Ginbase
0.17 partcherry brandy — Cherry brandymodifier
0.33 partFrench vermouth modifier
0.17 partRedcurrant syrup — Redcurrant syrupsweetener
  1. Stir cold and serve.

The source attributes this to Eric Forrester of the Cercle Nautique, Cannes.