Lexikon der Getranke by Hans Schonfeld and John Leybold (1913, p.5)

1 ponyAbsinthe — absinthbase
1 wholeegg — eibase
milk — frische milchdilution
1 ponyanisette modifier
1 ponyOrgeat syrup — orgeat-sirupsweetener
  1. Fill a shaker halfway with ice.
  2. Add the egg, absinthe, orgeat syrup, and anisette, then fill up with fresh milk.
  3. Shake and strain into a flip glass.

Ice: Cracked ice