Why this 1 sen coin sold for RM13,000 (3045.92USD)?

In this video, I will explain why this coin manages to sell at a very high price.
It seems like I forget to mention what type of error.
This type of error is called wrong metal error.

Link to the auction result.
Link: https://auctions.thetrigo.org/lots/view/4-BQUAH/malaysia-1970-1s-copper-clad-steel-ngc-ms-65rb-highes

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