A Lot (formerly Loth) was an old unit of measurement for the relative fineness[1] to gross weight in metallurgy and especially in coinage until the 19th century.

[2] It was used in the four main monetary systems of Germany: Austrian, South German, North German and Hamburg.

[1] The lot was defined as the sixteenth part of a Mark.

For refinement, a Lot was further divided into 18 grains.

The German proportional measure, the Lot, was finally replaced on 1 January 1888 in the German Empire by the proportional measure, permille (thousandths).