The Old Waldorf-Astoria Bar Book by Albert Stevens Crockett (1935, p.39)

lemon peel — Twist on top.acid
0.5 partgin — Tom ginbase
2 dashesorange bitters base
0.5 partsweet vermouth — Italian vermouthmodifier
  1. Build the orange bitters, Italian vermouth, and gin over ice.
  2. Twist lemon peel on top and serve.

See also: Bamboo, Baco