- A non-profit organization committed to promoting the free and independent collecting of coins from antiquity. The goal of this guild is to insure collectors can legally acquire and hold any numismatic item of historical interest regardless of date or place of origin.
- An educational site by Dr. Tom Buggey. Coins of Rome, Greece, and other cultures are featured along with many resources for attributing. Maps of ancient Greece and Rome, mints, essays, and other illustrations are featured.
- The Ottilia Buerger Collection of Ancient and Byzantine Coins at the Wriston Art Center Galleries, Lawrence University. Includes, history, images and a glossary.
- An online archive of ancient coins featured in major numismatic auctions. The site features a search engine and allows you to view the original text, images, and prices realized from many auction catalogs.
- Dedicated to ancient numismatics - Greek, Roman and Byzantine. Browse through books on ancient coins, read about the Ancient Coin Certification Service, and read ancient numismatic and historic articles at the Academy.
- Archive with search function that lists Roman coins by Emperor or by Sear number, Greek coins by Sears number or city and Byzantine coins by Sears number and Ruler.
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