LoveToKnow on MSN7 个月
7 Valuable US Mint Proof Sets Worth Six Figures
These sets of uncirculated proof coins usually include ... If you love collecting coins, the value of a US Mint proof set can ...
来自MSN2 个月
Mystery coin kept by farmers as safety net sells for $500,000 at auction
The mint in San Francisco made more than 2.8 million special uncirculated “proof” sets in 1975 that featured six coins and were ... minded individuals, who value our trusted voice and ...