by Proof Sets
(54)Buy new: $9.29
16 used & new from $4.65
(Visit the Most Gifted in Collectible Coins list for authoritative information on this product's current rank.)
source https://www.lifetechnology.com/blogs/life-technology-holistic-health-products-blog/9-1981-s-us-proof-set-original-government-packaging-1
