 They edited "The Cinderella Philatelist", journal of the Cinderella Stamp Club which they also founded, from 1961, which Norman continued after his brother's death.Their first book collaboration was "The Propaganda Forgeries" in 1938, a subject they returned to in 1954 with "Forged Stamps of Two World Wars".They were awarded the Glasewald Medal in 1961 and in 1980 were elected to the "Philatelic Writers Hall of Fame" of the American Philatelic Society.