No. This two-coin silver set was a common presentation for overseas sales (outside of Korea) when these were being sold. So many of these coins were left unsold after the end of the Seoul Olympics that the foreign distributors of these Seoul Olympics coins asked that the Korean government buy back their unsold stock. Otherwise, they were going to dump them onto the numismatic market at below their sale prices sold in Korea. They could have also simply redeemed them as money, since they have a denomination in Korean won. The Korean government bought them back and sold them to local Korean smelters AT FACE VALUE(!) who melted them.
These are some of the cheapest 92.5% silver coins of their kind that you can find. Look for deals, as their resale value is not the greatest. One thing that IS nice about these Seoul Olympics precious-metal coins is that each coin contains exactly either 1/2 ounce of silver (5,000-Won coin) or 1 ounce of silver (10,000-Won coin).
I wrote a 400-page book on South Korean coins, one chapter of which is the most in-depth discussion of the Seoul Olympics coins you will find anywhere. I also wrote a Korean Coin Price Guide that lists the market pricing for these commemorative coins and all other Korean coins sold in Korea and North America.