House mark

German house mark on a house front from 1572, with variation of the shape double hook.

A house mark was originally a mark of property, later also used as a family or clan emblem, incised on the facade of a building, on animals, in signet and similar in the farmer and burgher culture of Germany, the Netherlands and the Nordic countries.

These marks have the appearance of glyphs or runes consisting of a pattern of simple lines, without the application of colour.