In 1831, a medieval chessboard with chess pieces made of walrus ivory was found on the Isle of Lewis. However, there were five pieces missing from the game.

It wasn't until 200 years later that another piece was added: a family in Edinburgh brought it into Sotheby's in 2019.

The grandfather of the anonymous family bought the piece 55 years ago for $6, and passed it down to his family. Said family brought it to Sotheby's, where the staff instantly recognized it as one of the missing 12th/early 13th Century Lewis chess pieces, which are now on display at the British Museum and the National Museum of Scotland in Edinburgh.

The piece is said to be worth $1.2 million, according to the BBC.