8 Pfg Hindenburg-medallion with overprint \"Alsace\", variety \"inverted overprint, having bright colours and perfect perforations extremely fine copy in utterly mint never hinged condition with complete original gum - it is a matter the only known mint never hinged copy! Not signed, photo expertize Gerhard Krischke BPP: \"the condition is perfect. \" - Mr. Krischke goes in his certificate also on that a, that all the others known (few) examples regumed are!