Jack's Manual by J. A. Grohusko (1910, p.83)

1 dashAromatic bitters — bittersbase
1 fillsherry — Fill the glass with sherry.modifier
  1. Put the dash of bitters in a sherry glass and roll the glass until the bitters entirely cover the inside surface.
  2. Fill the glass with sherry and serve.

See also: Sherry and Bitters, Sherry Cocktail