What is the value of a1721 bronze coin with a king on front and a ship on back?

The value of a1721 bronze coin featuring a king on the front and a ship on the back can vary significantly based on its condition, rarity, and demand among collectors. Typically, such coins can range from a few dollars to several hundred, depending on these factors. It's essential to consult a numismatic expert or refer to a reputable coin catalog for a more accurate assessment. Additionally, recent auction results can provide insights into current market value.