| PDF | Brookman Lester G. The United States Postage Stamps of the 19th century | Hobby | postzegelpiet | 12/01/2022, 10:01 | 259.72 MB |
| ePub | Yvert & Tellier - Classiques du monde 1840-1940 (2005) postzegel catalogus | Hobby | postzegelpiet | 10/01/2022, 16:28 | 519.91 MB |
| PDF | Scott 2009 Standard Postage Stamp Catalogue - 6 Volumes | Hobby | postzegelpiet | 08/01/2022, 19:42 | 1.35 GB |
| PDF | Michel Eisenbahn (2015) postzegelcatalogus treinen | Hobby | postzegelpiet | 08/01/2022, 18:18 | 692.84 MB |
| PDF | NVPH - Speciale Catalogus 2002 van de postzegels van Nederland en Overzeese Rijksdelen | Hobby | postzegelpiet | 04/01/2022, 09:15 | 239.78 MB |
| PDF | 2014 Scott Specialized Catalogue of United States Stamps and Covers | Hobby | postzegelpiet | 03/01/2022, 17:45 | 476.05 MB |
| PDF | Postzegel albumbladen wereld | Hobby | postzegelpiet | 03/01/2022, 17:13 | 128.98 MB |