Louis' Mixed Drinks with Hints for the Care & Serving of Wines by Louis Muckensturm (1906, p.71)

1 quartconsomme — Hot strong chicken consommebase
1 quartsherry — Duff Gordon sherrymodifier
6 unitsegg — Poached eggsother
  1. Combine the hot consomme and sherry in a punch-bowl, ornament with poached eggs, and serve in heated consomme-cups.

The book says this is sufficient for six people.