1933. CHARLES LINDBERGH SURVEY FLIGHT. Cover with content dated “Julianehaab 10/8 1933”, sent via Reykjavik and København 24.8.33 to Sorø. Purple line-canc. “LINDBERGH POST GRØNLAND REYKJAVIK” and on the back side oval “GRØNLANDS STYRELSE”. Most rare. probably only 5 covers known. Cert. Møller AIEP [ ✉ ]