The Police Gazette Bartenders Guide by Richard K. Fox (1888, p.40) — 1888
| 1 piece | lemon peel — lemon rind | acid |
| 0.5 wine-glass | Irish whiskey | base |
| 0.5 wine-glass | Scotch whisky — Scotch whiskey | base |
| 2 wine-glass | hot water — boiling hot water | dilution |
| 1 teaspoonful | sugar — sugar | sweetener |
- Put the Irish whiskey, Scotch whiskey, sugar, and lemon rind into an earthen mug.
- Add the boiling hot water and serve.
Garnish: Lemon rind
- Summary
- A split-whiskey hot mug that keeps mixed-whisky winter service visible in a practical regimental form.
This is useful because it records mixed Irish-and-Scotch hot service explicitly instead of assuming a single-whisky default.
The earthen mug is a meaningful vessel choice and should stay attached to the service.
Compared with the single-spirit hot whiskey punches, this is a deliberate crossover branch.