Philately hub
Price catalogues, identification of tricky series, forgeries and how to spot them, a list of experts, AI recognition and articles for collectors — all in one place, free.
Nine areas covering the journey from a first stamp to authenticating a rarity.
9 cataloguesČSR I & II, Protectorate, Slovak State and the Czech Republic — with Pofis numbers, price levels by condition and previews of every stamp.
Open catalogues →
How to tell apart types, perforations and watermarks in series where values differ a hundredfold between varieties.
Learn the differences →
AIPhotograph a stamp and our AI matches it against the catalogue — country, number and price level in seconds. Free trial for registered users; the Znamky+ tier includes up to 10,000 recognitions a month.
in your accountKeep your whole collection online as part of your free registered account: AI recognition sorts stamps in, folders and statistics keep order, and records of purchase, estimated and selling prices make it easy to track your philatelic investments.
example: forgeryOverprints, reperforations and entire forged series. How to tell that an auction lot is not what it claims to be.
How to spot a fake →
certificateWho expertises Czechoslovak material, which marks they use and when a certificate pays off — with a real certificate for a Pof.273 gutter pair from our stock.
List of experts →
new every weekGuides to collecting fields, the history of issues, exhibition reports and advice on valuing an inherited collection.
Read articles →
2026–2028Where to go this year and next — a calendar of philatelic exhibitions including PRAGA 2028. Coming up: Treasures of World Philately 3 at Prague's Municipal House (29 Aug – 6 Sep 2026).
The sister hub for banknote collectors: catalogues with Pick numbers, series and grades from UNC down.
Go to notaphily →
Over 28,000 stamps, blocks and covers in stock — with a guarantee of authenticity.
