Hogshead

[Sarah]

An English measure of capacity, containing 63 wine
gallons, or about 52/ imperial gallons; a half pipe.

[Sarah]

A large [cask] for liquids, usually containing liquor; a liquid
measure containing 63 old wine-gallons (equal to 52 imperial gallons).

Abbreviated [hhd].

This content was prescribed by a [statute] of 1423: The London hogshead of beer contained 54 gallons, that of ale 48 gallons; elsewhere the hogshead of ale or beer contained 51 gallons.