open mitres

The two cut edges if the mitered corner do not meet when they are folded over. It is possible for the cut edges of a butt mitre to pull apart slightly on leather covered boards as the leather dries and shrinks.The gap create by this prc ess is typically very narrow (less than 1 mm), and should not be confused with open mitres, which may be anything from 2-5 mm wide.

Gjæret hjørneinnslag der de to rett avskårne kantene ikke møtes men har en åpen avstand på omkring 2 - 5 mm, som ikke må forveksles med at åpningens avstand skyldes uttørking og krymping av skinnet.