Daly's Bartenders' Encyclopedia by Tim Daly (1903, p.66)

2 dasheslemon juice — Source says two or three dashes.acid
2 dasheslime juice — Source says two or three dashes.acid
0.5 glassice — fine icebase
1 wine glassTom gin base
seltzer — cold syphon seltzerdilution
1 ponycream other
1egg — whole eggother
1 spoonfulsugar — powdered sugarsweetener
  1. Shake the fine ice, lemon juice, lime juice, powdered sugar, cream, Tom gin, and whole egg well in a shaker.
  2. Strain into a fizz glass, fill with cold syphon seltzer, spoon well, and serve.

Ice: Fine ice

Because Daly claims authorship, this is a useful self-branded turn-of-the-century fizz checkpoint.

The whole egg and cream make this a notably dense fizz, and the final spooning matters.

See also: Cream Fizz, Silver Fizz

Source identifies this as devised by Mr. Daly.