The six known examples were discovered in France in 1861 in the Treasure of Deauville and then sold to collectors. One was given to the Bibliothèque nationale de France in 1931. The only other example whose whereabouts are currently known is the one just graded by NGC.
These coins were issued during the brief rule of King Louis X in honor of his great-grandfather, King Louis IX, who is the only French king to have been canonized by the Catholic Church.
This coin will be on display at the ANA World’s Fair of Money August 13–14 at the booth of Numismatic Emporium Inc., table #1422.