(★)Yvert 14(15), 14a(6). 1913. 50 m gray violet, block of twenty-one. Six DOUBLE IMPRESSION stamps (one of them vertical). MAGNIFICENT AND EXTRAORDINARY RARE BLOCK, PROBABLY THE ONLY KNOWN. Yvert 2021: ++4,500 Euros
Morocco International Auction #103 #103
Monday, 27 February 2023 | 18:00
Lot 2023
Starting price
475€