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Author: C4 Admin
Build Your Numismatic Library
Christine Karstedt Recognized with Honorary Life Membership
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C4 Convention
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Stack’s Bowers Presents the Sydney F. Martin Collection at Auction
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2022 Whitman Expo – C4 Dinner – March 31
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Stack’s Bowers Galleries Catalog
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2021 C4 National Convention / Whitman Expo – November 18-20
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Stack’s Bowers Consignments
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Creation of The Sydney F. Martin Memorial Numismatic Publication Award
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