Sites:
| Ancient to Early Medieval Bi-metallics: A quick review of early bi-metallic coinage. | | Bi-metallics Coins, Tokens: Includes articles on the subject, and some images. | | Joel Anderson: World coins: An offering of world coins and paper money and associated catalogs. Interesting list of bi-metallic coins for sale, with some scans. | | W.B.C.C.: Online site of the Worldwide Bi-metallic Collectors Club, created to pool information about this type of coin. Includes catalogue, an image gallery, and all the club's newsletters. |
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