Top: China, Kwan-Tung Province, 20 Fen Bottom: Korea 1 Yang Year 502 = 1893 I would be very cautions about the authenticity of Chinese and Korean silver from this era. They are highly counterfeited. I do see China silver minors around (in worn condition), but I never run across Korean silver from that era.
Many thanks for the replies , and the information , on the 3 posts. Amazes me the knowledge people have. I will take the Korean one to a specialist to check over. No reason to imagine that it is a copy - going on the other examples from the same collection, but you never know
Both look genuine. Would be good price today. Check ebay for sold prices. First coin could be 50 - 100. Second could be around 150. Nice one!