Harness loom (Accepted)

A loom is a mechanism for weaving two sets of thread together to form cloth.  The simplest looms date from prehistory; several types of loom were used throughout period.  Although a period artifact, we’ve no examples of the loom used as a period heraldic charge.

The illustration is of a harness loom, which uses foot pedals to raise and lower the harnesses holding the heddles.  It would be used by a human facing dexter, which makes this depiction the default orientation.  Harness looms might have one of several designs; the depiction is taken from Jost Amman’s Book of Trades, 1568 [56].

Diana Doria bears:  Azure, a harness loom argent.