500 Fr. Postal stamp on registered special delivery airmail First Day Cover from SAARBRÜCKEN 2 1.8.53 to Lorch with customs slip of paper and arrival postmark, in perfect condition, signed on the base Hoffmann BPP and photo expertize Ney VP (2017) "the stamp as well the first day postmark are genuine. The stamp on the transported letter is in perfect quality. ", Michel 600.-