I have written about South Korean coins in narrative format in the past, but it seems that many people interested in these coins are looking for database-formatted information that online world-coin references like numista and colnect provide. However, I find many errors in their databases with their Korean-coin listings. To be fair, they are trying to catalog pretty much everything, so there's only so much that they can do. Take a look if interested: http://dokdo-research.com/southkoreancoindata.html
