1849 Massachusetts & California Co. Five Dollar - Copper, K-5b Over K-5c
Strike TypeCoin Details
Description
This copper striking of the Massachusetts & California Company five-dollar piece exhibits an overstrike variety, K-5b over K-5c, where a coin previously struck with the K-5c dies was subsequently struck again with the K-5b dies. Overstrikes occur when a previously struck planchet is fed back through the press with different dies, resulting in a piece that shows traces of both impressions. Overstrike varieties are among the most fascinating die varieties in the California territorial series because they provide direct evidence about production sequences and die usage. The existence of a K-5b/K-5c overstrike proves that both die pairings were available simultaneously and that planchets struck with one pair were deliberately or accidentally restruck with the other. The copper medium allows both the primary K-5b impression and the underlying K-5c traces to be examined in detail. This overstrike represents one of the most numismatically significant pieces in the M&C base-metal series, as it provides production-sequence evidence unavailable from any other source.
Rarity Notes
Very rare. Overstrike varieties are inherently scarce. This K-5b/K-5c overstrike may be unique or nearly so.
Cross References
K-5b over K-5c (Kagin). Massachusetts & California Co. $5 copper overstrike variety.
External References
Error Varieties
No listings found
This category doesn't have any child listings yet.
Other Strike Types in This Series

1849 1849' Massachusetts & California Co. Copper Fantasy Gold Half Eagle
1849 1849' Massachusetts & California Co. Copper Fantasy, Gilt Gold Half Eagle
1849 Massachusetts & California Co. Brass Restrike Gold Eagle
1849 Massachusetts & California Co. Five Dollar - Brass, K-2c
1849 Massachusetts & California Co. Five Dollar - Copper, K-2b, Gilt
1849 Massachusetts & California Co. Five Dollar - Copper, K-4a
Collector Essentials
Tools and references for building and protecting your coin collection.
10x-20x Jeweler's Loupe
A must-have for examining coin details, mint marks, and surface quality
Red Book β Guide to U.S. Coins
The essential annual reference for U.S. coin values, history, and mintages
Coin Albums & Storage
Archival-quality albums and holders to protect and display your collection
USB Digital Microscope
Capture detailed images for documentation and community submissions
As an Amazon Associate, NumisDex earns from qualifying purchases.