Anyone want to take a stab at deciphering the mintmark on this one? It's quite worn. I think my best guess is Boo Ciowan (Beijing). Emperor is Jiaqìng if it changes the odds.
Advice on valuation for swaps would be helpful, though. Are these low value, like below $1 in worn condition? Does the variety (type and privy mark) make a difference? Is there an online catalog that gives values by variety? Thanks!
Bumping this to ask again if anyone has a good resource for identification and valuation of Chinese cash. I also have a few where the emperor and mint combination don't seem to exist in the Numista catalog, but I don't know where to start looking for information to create the pages.
http://www.facebook.com/NumismaticsUK
I'm not an expert in any kind of coins, but I reckon I'm good at research and will do my best to help. Feel free to tell me my identifications/valuations/gradings are wrong. It's the only way I'll learn.