Rare Stamps – The 1851 Baden “9 Kreuzer error”
Baden Franked with the 1851 Baden 9-kreuzer black stamp erroneously printed on blue green paper instead of the intended rose paper (Scott 4b), the cover was listed by Koehler with an opening bid of €800,000 – it sold for €1.26 million. With the buyer’s commission and fee added, the cover sold for €1,524,601.50, or approximately…