Lot
1299 
Postage Due, 1925, 10¢ carmine rose, missing overprint, top left corner margin block of four with the top two stamps missing the overprint, vibrant color on fresh paper, o.g., bottom stamps never hinged, Very Fine, ex-Salz. CZSG No. J20a. Scott No. J20a $6,000.
A CHOICE EXAMPLE OF THE 10¢ CARMINE ROSE MISSING OVERPRINT ERROR IN A BLOCK OF FOUR, ONLY 10 EXAMPLES EXIST.
This error was produced when the overprint was shifted down one row on an upper left pane, therefore only ten error pairs were made, including three that are contained in a plate block, as well as the two in the block offered here.