Tressure
A Tressure is a subordinary that can be regarded as a diminutive of an orle. John Woodward is of the opinion that a plain tressure is a diminutive of the orle, and is depicted half its thickness. A tressure is normally an ' orle gemel', i.e. an orle divided into two narrow ones set closely together, one inside the other. A. C. Fox-Davies argues that a tressure is by necessity double, otherwise it would be an orle. However, examples exist of coats of arms with a single tressure, as in the arms of Edward Lawrence.
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