Digging into the dirt, vel Kwasniewski uncovered a small gold coin. Museum officials identified the coin as a well-preserved gold gulden from 1429 or 1430. Photos show the unique medieval artifact.

To redeem a link, simply click on it. Doing so redirects you to the Coin Master app. Note that you’ll need to do this on the same phone, tablet, or other device where you’ve installed the app.

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