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Our data is sourced from official Bureau of Engraving and Printing records, verified by expert collectors, and continuously updated. We maintain a 99.5% accuracy rate.
Yes! We welcome contributions from the community. Contact us with verified data, sources, and documentation for review and inclusion in our database.
Our website is fully responsive and works great on mobile devices. A dedicated mobile app is in development for 2024.
We update our database weekly with new production data, market values, and community discoveries. Major updates are announced in our newsletter.