https://www.ebay.com/itm/Korea-South-Korea-10-Won-1966-NGC-MS63-/123911328317 This one has "full pagoda eaves." This is a diagnostic that I thought up after examining many examples of these 1966 10-Won coins. This was the first year that the South Korean Mint struck its own coinage. They used coining dies made in Britain by the medallist firm, John Pinches Ltd. Often, this particular date appears with the eaves of Dabo Pagoda not fully struck up, making the eaves look "mushy," while the reverse has a scratchy or pockmarked "10," noticeable at the center of the numeral. This was either due to low coining press pressures and/or excessive relief on both sides of the coin in the same general area. Later dates of the 10-Won coin do not seem to have this issue. This particular 1966 10-Won coin in the above eBay listing seems fully struck. Here are some examples of uncirculated 1966 10-Won coins that are not as fully struck: . Slightly blobby eaves. . More Pronounced blobbiness quite blobby, if not worn die state.