- Rebuilding the PCN website
- Changed dates of the last 2 PCN meetings
- Gezocht : Perfinpost nummers 40, 53 en 56
- Who recognizes this perforation?
- Updated catalogs in PCN library
- Dutch perfin catalog awarded gold
- Meetings PCN in De Bilt in 2019
- Response to request for information about perforations
- RM&Z a completely new Dutch perfin
- Request for information
