Spend it.
At the most 25 cents
rhodesia and nyasaland 1958
Three-cent pieces were minted during the 19th century. If you mean 1873, please see the question "What is the value of an 1873 US 3 cent piece?"
Rhodesia Elizabeth the second 25c 1964
It's still worth 5 cents.
It's still worth 25 cents in Canada.
It's currently worth 2 cents for the copper.
It's just a common half dollar, spend it.
Rhodesia did not use decimal currency until 1974. The coin would have to be Rhodesian 2 shillings and 6 pence.
If it was found in change, the coin is face value. A uncirculated coin is about 25 cents.
Kennedy is on the US half dollar (50 cent) coin and Lincoln is on the penny (1 cent) coin.