Links to websites about perfins General Wikipedia Nederland Wikipedia Duitsland Wikipedia Engeland/UK The Postage Stamp Chat Board & Stamp Forum Perfinworld Community of Collectors Australia Perfin Stamps of Australia Belgium Philippe Vanhuffel over perfins in de ‘grote Montenez’-zegels Canada –British North America Philatelic Society (BNAPS) –Tony Brown over Canadian Perfin Officials – Internet Archive Wayback Machine Cuba Robert Littrell over de perfins van Cuba Danmark – Jan Langenberg over Deense perfins – Jan Kronak, maker van de Deense perfincatalogus, over Deense perfins Germany Arge Lochungen over Duitse perfins England/UK The Perfin Society (UK) France Philatelie Collections over de Franse perfincatalogus van Ancoper Hungary Magyar Perfin Klub Hong Kong Rod Sell van de Philatelic Study Group over de perfins van Hong Kong Italy Perfin.it over Italiaanse perfins Japan The Stamp Forum over Japanse perfins Netherlands Haarlemse Filatelistische vereniging ‘Op hoop van zegels‘ Former Dutch Indies Studiegroep ZWP (Zuid-West Pacific) over de perfins van Nederlands Indië Romania Romania Stamps , Roemeense perfins Scouting Scouts on Stamps Society International (SOSSI), perfins in scouting-zegels USA The Perfins Club South Africa Zenonas Zebrauskas uit Litouwen over de perfins van Zuid-Afrika Switzerland Schweizerischer Ganzsachen-Sammler-Verein
