The old naval rum rations were distributed in Copper Rum Cups like this one, holding approximately 1/4 gill. Ours is handmade from tin lined copper and is just the thing for a hot toddy to warm you on a frosty evening. These Copper Rum Cups Feature a copper or brass handle which will slip neatly over your belt, it is approximately 2" in diameter by 2-1/4" tall.