News

The C4 Library is Offering Collection Sale

Posted on February 7, 2023February 7, 2023

C4 Internet Only Book Sale #2!

Posted on January 14, 2023January 14, 2023

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Build Your Numismatic Library

Posted on January 4, 2023January 4, 2023

Christine Karstedt Recognized with Honorary Life Membership

Posted on November 2, 2022November 2, 2022

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C4 Convention

Posted on September 3, 2022October 14, 2022

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Stack’s Bowers Presents the Sydney F. Martin Collection at Auction

Posted on August 14, 2022August 14, 2022

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2022 Whitman Expo – C4 Dinner – March 31

Posted on February 28, 2022November 30, 2022

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Stack’s Bowers Galleries Catalog

Posted on November 7, 2021March 15, 2022

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2021 C4 National Convention / Whitman Expo – November 18-20

Posted on September 15, 2021November 30, 2022

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Stack’s Bowers Consignments

Posted on July 18, 2021March 14, 2022

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