1810 GOLD 1/3 Guinea Great Britain Third Coin NGC AU Details Cleaned. Mark Cooper Trading as M. Has been a front-runner in the coin & bullion industry for over 30 years. Helped build some of the greatest collections of our time. In some cases, we even helped to sell them.Our customer service, fair pricing, and trustworthy service have made us a top rated company. Most of our coins are graded to the World Standard known as the'Sheldon Standard' Below is a chart showing how it compares to some UK coin grading standards, MS stands for Mint State (Uncirculated). The item "1810 GOLD 1/3 Guinea Great Britain Third Coin NGC AU Details Cleaned" is in sale since Wednesday, January 31, 2018. This item is in the category "Coins\Coins\British\Early Milled (c. The seller is "markflorida" and is located in Thornhill, Cumbria. This item can be shipped to United Kingdom, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, United States, Canada, Japan, New Zealand, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, South Korea, Switzerland, Saudi arabia, South africa, United arab emirates, Chile.