1922 King Albert I 20c red error of color is one of the greatest philatelic items of Belgium. Albert I reigned as the third King of the Belgians from 1909 to 1934. One of the brightest releases is 1922 King Albert I 20c red error of color. It is considered that only 400 stamps were issued and only few exist today. The block of four King Albert color error stamps with an original gum was sold for $19,545 by David Feldman on December 14, 2012.