British Gold Guinea George III 1798 Extremely Fine. Fifth Laureate Head "Spade" reverse Spink 3729. Check out my other items! The item "British Gold Guinea George III 1798 Extremely Fine" is in sale since Thursday, March 19, 2020. This item is in the category "Coins & Paper Money\Coins\ World\Europe\UK (Great Britain)\Gold".The seller is "quid999" and is located in Dublin. This item can be shipped worldwide.