The coin I use for my avatar is a stock gif from my macbook. So it's not even a real photo. Just wondering if it is a real coin or just made up. The name of the gif is " ching kouka " . I think this means tails, not sure though. Thanks!
You need a larger picture, so that the characters can be read. My guess is that you have someone's idea of a pretty picture rather than a genuine Asian cash coin.
Hontonai,it is definitely one of those modern charms that are often found hanging in someone's doorway as part of the belief in Feng Shui. Aidan.