Stunning New KGV Penny Red Sideways WMK Dazzles Experts (ASP V9N6)

Nobody really expected it so soon, but against all the odds, a second KGV 1d Red with single watermark sideways has been discovered not
long after the first-ever such rarity was found as recently as 2013. Dr Scott Starling breaks the news to ASP readers – and asks, could there be more?

For the full article, refer to V9N6.