373. Auktion
23.-27. Juni 2020 in Wiesbaden
POSTAL STATIONERY: 1906, Semuse Lignee essay for reply letter card with envelope blue without value, both sides with overprint “SPÉCIMEN”, sample presented to the UPU Conference in Rome, fine and rare
1910, Carte pneumatique 30 c.+30 c. lilac, unused, very fine