China
People's Republic 2-Piece "40th Anniversary of People's Republic" 10 Yuan Proof Set 1989,
1) Eagle & Great Wall 10 Yuan - Gem Proof, KM256
2) Dove & Tiananmen Square 10 Yuan - Gem Proof, KM257
Very original, each coin remains in its mint-sealed soft plastic and is housed in the original box with COA. From a reported mintage of 5,000 sets, but seemingly more scarce.
HID02901242017
Estimate: 250-300 USD