Educational / Training
- Why Not Collect Perfins?
- New Member Q&A’s
- Exploring Stamps Video: “Collecting Perfins”, Excellent introduction
- Video: “ABC’s of Collecting Perfins”, starring Jerry Hejduk. Slides can be downloaded HERE
- Perfins: Maximum challenge, Minimal cost (Linn’s Refresher Course)
- Collecting Perfinned Stamps: The Hole Story
- A glossary of perfins terminology
- Collecting and exhibiting perfins
- What are US perfins worth?
- Procedure to Electronically Compare a Perfin with a Catalog Image
- Exhibit Guide
Perfin Catalogs
Perfin Clubs, Organizations & Societies
- Canada British North America Philatelic Society (BNAPS)
- Czechoslovakia Society for Czechoslovak Philately, Inc.
- Denmark Danish Perfin Collectors’ Club
- Dutch East Indies Dutch East Indies Perfin Study Group
- Germany Arbeitsgemeinschaft Lochungen
- Great Britain The Perfin Society
- Hong Kong Hong Kong Security Markings and Perfins (Study Group)
- Hungary Magyar Perfin Klub
- Netherlands Perfin Club Nederland
- New Zealand Perfin Club of New Zealand and Australia
- United States The Perfins Club