China
People's Republic Certified silver and gold "Singapore International Coin Fair" Panda Medallic Proof Pair 2012,
1) 5 Ounce Silver Medal - PR69 Ultra Cameo NGC
2) 1/2 Ounce Gold Medal - PR70 Ultra Cameo NGC
Shenzen Guobao mint. Both share the same design, cuddling pandas on the obverse and the Great Wall of China and modern Singapore landmarks on the reverse.
Estimate: 700-1000 USD