在收藏品市场持续升温的当下，钱币评级机构如同钱币价值的“翻译官”，用专业标准为收藏者解读历史印记的经济价值。总部位于美国的PCGS（ Professional Coin Grading Service）是全球知名的第三方钱币评级鉴定机构，日前，PCGS正式推出中国古钱币评级服务，填补了 ...
AUSTIN, Texas--(BUSINESS WIRE)--HID Global, a worldwide leader in trusted identity solutions, today announced that Collectors Universe, Inc. has added HID Trusted Tag® Services to its Professional ...
Rare coins from the 1930s, particularly those from the earlier part of the decade, can be worth hundreds or even thousands of dollars to coin collectors.
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