Three months later, not hide nor hair of the 1984 Jamaica uncirculated specimen set.
I did however just purchase an hitherto unpublished but catalogued as existing 1976 (U) prooflike Guyana uncirculated Ten Dollars with hero Cuffy on the obverse. The coin appears to have come from a bag, and can only speculate as to its history. I think the original plan was to actually strike these prooflike coins for circulation. They also struck this coin in the Matte quality, and these were made as the "currency" counterpart for the moneymaker proof coins and sets. As best as I can put together, the original mintage struck by Franklin Mint was sent to the Central Bank of Guyana where in all probability they languished; in 1976 this very coin had the purchasing power of One USD and was 45 mm. Nowadays, the purchasing power is all of FIVE CENTS (USD).
Strangely, the pot-metal value of the copper nickel alloy now likely exceeds the face value of the coin in Guyanese Dollars.
I really wonder what happened to all of them. The 1976 matte coins are very scarce but the prooflike are probably very rare. These currency coins for Guyana and other countries struck by the Franklin Mint are quite a challenge and thankfully not pursued by many thus keeping them affordable. I found that I can post pictures off my iPhone and will try tomorrow if I get delivery of this coin by then.