Marginal Markings Committee


Plate Position





Design Elements


The position of a plate, or of a pane within a plate, has been identified by marginal markings. Also a lesser known marking has been used to position a plate on the press 


A.  Letter 'R' - Designates the right side of a plate .


B.  Position Pane - Identifies from which position on which size sheet the pane came .



Plate Identification


Production Markings









Doug D’Avino, The Encyclopedia of United States Stamp Collecting:  Marginal Markings, The United States Specialist, Vol 75, September 2004, pg 389-406.