This is from the "foreigners only" Paradise City Casino near the Incheon South Korea Airport.
Got it pre-pandemic on a long layover and they had a free shuttle from the airport to casino.
1000 won is equal to USD 0.77 (77 cents).

I don't know if its a "better" chip. But if you want to do a deal of trade or trade plus cash for the Darwin MGM chip, let me know.