File:Non-Germania 5 Pfennig Stamp and Helgoland Postmark (1899-02-23).png - Wikipedia
Turkey 5 Pfennig Reichspost with overprint 10 para in the pair with different high vertical overprint, in perfect condition mint never hinged, ** unused never hinged | MA-Shops
40 I Ziffer im Oval 5 Pfennig Deutsche Reichs Post - Solarabsorber Produktions GmbH
SAN Unattended Live Bidding Catalog Level 3
RS107b Hembolds Genuine Preparations Medicine Stamp - Match and Medicine Proprietary Die and other US Civil War Era Stamps