Add Eternity Coins to Favorites. Walking Liberty Half Dollars. Indian Gold Quarter Eagles. Up for sale here is an excellent 1823-A Austria Gold Ducat Coin that has been certified and graded AU55 by the NGC Grading Service – Choice Almost Uncirculated. This is a rare and beautiful 1823 Choice AU Gold Ducat with a nice overall look. Quite a coin, now 200 years old! As always, this piece is Guaranteed Genuine. About Us: Quality customer service is a top priority at Eternity Coins. Hundreds of satisfied customers. With rare classic gold and silver coins for their collections. We have been continuously recognized as an. For consistently providing excellent service and achieving the highest ratings from buyers of our coins. We take special care in the packing of each coin and also include free tracking with every order to ensure that your coins are delivered safely. All coins offered by Eternity Coins are. Coin grading is subjective and all posted grades provide professional opinions. We post multiple large, clear photos of each and every coin so that you can take a look at these gorgeous pieces yourself. If you have any questions, feel free to let us know. What Our Customers Say. Received Coin with No Surprises. Quality of Coin Exactly & Better Than Expected. This is a person I intend to do business with in the future.