| Peru Philatelic Study Circle |
Chuck Wooster:
Royal Philatelic Society of London:
S.C. Barnett:
Wim De Gelder:
 | The Post Offices of Peru - (February 2019 version) - MS Excel file, a | |
| MUST for the postmarks collector, this file lists over 2,500 POs, when they opened, category, location, etc. etc. Years worth of research are available from this single file. | ||
| P.S.N.C. Census - Comprehensive census of covers, used stamps and | |
| proofs |
Royal Philatelic Society of London:
| 2011.440 – Pacific Steam Navigation Company intaglio plate, ½oz, | |
| Peru, 1857. The Museum of Philatelic History at The Royal Philatelic Society London. | ||
| 2011.441 – Pacific Steam Navigation Company intaglio plate, 1oz, | |
| Peru, 1857. The Museum of Philatelic History at The Royal Philatelic Society London |
S.C. Barnett:
| Stamps of Chile used in Peru - Stanley Gibbons Monthly Journal, | |
| November 30, 1911 |
Wim De Gelder:
| Los Resellos de Triangulos de Peru (1883-1897) - Conference given | |
| at Mi Oficina Philatelic Society, July 8, 2020. Video of the conference |
| APS Affiliate Member # 258 |
| Original Research Contributions |
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