Boston Cocktail Shaker
A variation on the Cobbler shaker, and one which more closer resembles what bartenders would have originally used, is the Boston Shaker.
This is a shaker whose lid doesn't have a built-in strainer, thus it only consists of two parts. One part is a metal mixing tumbler; the other is a slightly smaller glass tumbler
Separates into two pieces, the glass and the shaker, collectively holding 1255ml.