1. 
   pottery marks
   Identification marks on ceramics, which may include details such as pattern name, initials or symbols of manufacturer and craftsmen, and dates of manufacture or establishment of factory. They are usually found on the underside of the piece, but are occasionally incorporated into the decoration itsel...
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   pottery-marks
   Uusually found on the underside of a piece, but are occasionally incorporated into the decoration itself.
   Found op http://www.antique-marks.com/antique-terms-p.html
   
   

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