The "bronze strike" of the Willem III guilder from 1853 is a rare historical coin, minted to commemorate the visit of King Willem III and his son Hendrik to the Rijksmunt in Utrecht in September 1853. • Type: It is not a regular circulation coin, but a special commemorative coin or "afslag" (a proof or memorial strike) made of bronze, using the dies of the regular 1 guilder coin. • Description: The obverse depicts the portrait of King Willem III, and the reverse features a nine-line text commemorating the visit instead of the standard coin design. • Rarity and Value: This bronze strike is considered very rare (designated RR in catalogs such as Sch.621b).