The White Eagle Project began as a personal effort to answer a question that turned out to have no satisfying answer elsewhere: what is a complete, sourced, historically contextualised record of every coin ever minted for Poland? Existing catalogues, including Kopicki, Parchimowicz, and the NBP archives, are essential but scattered, often out of print, and rarely contextualised for readers who are historians first and numismatists second.
Wherever possible, entries draw on at least two independent primary or secondary sources — auction records, museum holdings, mint archives, and scholarly monographs — and the majority do; coins with a single source or with sources still being verified are flagged for follow-up. Mintage figures are given with explicit confidence levels (exact, estimated, or unknown) rather than presented as certainties they are not. Auction-realized prices are catalogued for a growing subset of coins; this database does not aim to be a dealer's price guide and does not show retail "ask" prices.
The project covers … coin types across nine historical eras, from the earliest Polish silver denars of Bolesław I Chrobry around the year 1000 to the collector issues of the National Bank of Poland. It does not aim to be a dealer's price guide. It aims to be the reference a historian, a student, or a curious person can trust.
All content is released under a Creative Commons Attribution 4.0 license. Source data and errata corrections are welcomed via the contact page.