Lot
2326 
Postage Due, 1959 (6¢) carmine rose & black, denomination omitted, horizontal pair at top of corner margin plate no. "26661" block of 10, o.g., never hinged, showing transition with slightly weaker "6 Cents" denomination below errors, F.-V.F., an extremely rare error with only 20 such errors recorded. Scott No. J94a $1,400 for two pairs.
Realized: $725