Auction: 163 - The Philatelic Collectors' Series Sale
Lot: 1366
#210a, 1915 5c Blue and black, Center Inverted, rare mint example, excellent centering for this variety, o.g., minor thinned spot, very fine appearance; many of the examples recorded are faulty; only nineteen mint examples are known; 1991 Enzo Diena certificate.
Sold for
$500