Category Archives: authentication

Outlandish Alteration of a Chinese Dollar

By Jay Turner for PCGS …… With vintage Chinese coins, I have come to see unimaginably fantastic forgeries and alterations. Yet one alteration goes above and beyond. In a submission from the PCGS Asia office in Hong Kong, a coin was submitted as a Chinese Manchuria Year 33 (1907) Dollar, yet the entire coin had […]

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Pedigrees & Hoards: Shipwreck Coins

  By Rick Bretz for CoinWeek …. Thanks to a fellow pedigree collector, I’ve started to add shipwreck coins to my collection. There’s a lot of information available on each shipwreck, and the stories are as interesting as any “land-based” hoard so why not? The nice thing about building any pedigree collection is that you […]

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Ron Drzewucki’s Grading Coins: The 1916-D Mercury Dime, from AG3 to VG8

By Ron Drzewucki – Modern Coin Wholesale ….. For as long as I’ve been around coins, the 1916-D Mercury dime has always been one of the most sought after and dangerous twentieth-century U.S. coins. Sought-after due to its status as the key date in the enduringly popular Mercury series; dangerous due decades of chicanery played […]

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NGC & Chen Gi Mao Form NGC Advanced Vintage Chinese Coins Authentication Bureau

Extremely Rare 1897 Ferracute Szechuan Pattern Set is Certified Numismatic Guaranty Corporation® (NGC®) and noted numismatist Chen Gi Mao have announced that they will form the NGC Advanced Chinese Authentication Bureau (ACAB). The partnership combines the experience and expertise of NGC, a leading third-party coin grading service established in 1987, and Chen Gi Mao, one […]

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APMEX: Top Precious Metals Security Features Ensure Product Authenticity

APMEX, a leading Precious Metals e-retailer, wishes to introduce their Products with Security Features page to those who place particular importance on enhanced security for their Precious Metals products. During unstable economic periods, there can be spikes in counterfeiting and attempted counterfeiting of Precious Metals products. While APMEX uses impeccable security protocols, you may wish […]

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Why eBay Discontinued Coin Authentication. VIDEO: 3:40

Robert Gurney, Swamperbob Associates Interviewer: David Lisot, CoinWeek.com…….. In March of 2014, eBay discontinued its coin authentication program. Robert Gurney was one of seven eBay authenticators. He shares with CoinWeek ways coin collectors can protect themselves when buying coins on the auction site. Copyright © CoinWeek LLC.  October, 2014 US Mexican Numismatic Association  Second Annual […]

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