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Rare Post-Run Mario, Duck Hunt Cartridges Set for $Million Auction

8/10/2026

38 5 Full Breakdown

Summary

Story summary

A storage box in Waukesha, Wisconsin held 100 Super Mario Bros. and Duck Hunt cartridges printed two years after the original run.
Jason Ganos of Nintendo Wire called the find a once-in-a-lifetime, highly documented event.
Three cartridges will be auctioned on Aug. 12, 2026 and could fetch millions.
A few cartridges earned the first PSA 10 grade for an NES game.

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Story summary

A storage box in Waukesha, Wisconsin held 100 Super Mario Bros. and Duck Hunt cartridges printed two years after the original run.
Jason Ganos of Nintendo Wire called the find a once-in-a-lifetime, highly documented event.
Three cartridges will be auctioned on Aug. 12, 2026 and could fetch millions.
A few cartridges earned the first PSA 10 grade for an NES game.