1920, Coat of Arms overprint issue 4 marka on 20 sk. blue, block of four, with additional franking, tied by cds. “WILNO 25 4 21” to front and reverse of openend out value declared cover, five complete wax seals including official wax seal, to Tarnow with arrival mark, there undeliverable thus returned, tiny stain on block of four, otherwise a fine and scarce entire
