1913, 10¢ Orange Yellow Panama-Pacific, bottom margin single with plate number "6143", o.g., never hinged, precision centering within beautifully balanced oversized margins, radiant color, a Superb jumbo, a remarkable gem plate number single, with four examples to receive this lofty grade with none higher; with 2016 P.F. certificate and 2006 P.S.E. Graded certificate (Superb 98J, $3,450). Scott No. 400  $270. ONE OF THE FINEST NEVER HINGED EXAMPLES OF THE 1913 10¢ ORANGE YELLOW PANAMA-PACIFIC ISSUE. $0 (Image)