Liberia – Official Proof Set – 6 Coins – 1968 – Mint Packaging – KM-PS3 – Unike a lot of the Mint and Proof sets that we buy on the secondary market, this Proof Set is in absolutely pristine condition. Listed in Krause’s Standard Catalog of World Coins as KM-PS3, the set comes as issued by the San Francisco branch of the United States Mint in 1968. Only 14,396 of these sets were minted and according to the card that comes in the envelope, they were sold to 4,776 different buyers. The set consists of the following coins: One Cent – KM-13, Five Cents – KM-14, Ten Cents – KM-15a.2, Twenty-five Cents – KM-16a.2, Fifty Cents – KM-17a.2 and One Dollar – KM-18a.2. Comes in its original mint issued packaging.