Yellow Cathedral
The Yellow Cathedral is a stamp produced by Deutsche Post but which was never issued. Beginning on September 1, 1948, a new stamp series, the "building series", was introduced in the American and British Occupation Zones of Germany. One planned design featured Cologne Cathedral in yellow, with a nominal value of five Pfennig. The stamp was intended to be used as a surcharge stamp for airmail delivery.
The stamp was actually issued in blue and all but a few copies of the yellow stamps were destroyed. There have been only three known auctions of yellow cathedral stamps.
Between September 20 and 22, 2007, the only complete sheet of stamps was exhibited at the Philately and Coin fair in Cologne. The copy on display was from Bonn's Philatelic Archive. The sheet is insured for one million euro.
