I would check your local coin dealer or eBay.
Sorry no US 2 cent coins dated 1863
The US did not mint any half dollars dated 1800.
Sorry no US 20 cent coins dated 1802
There are no U.S. half dollars dated 1975.
The last large cents were dated 1857. If your coin is dated 1861 it could be a British penny (not a cent), a private token, or a Civil War piece. Please post a new question with more details about its design and size.
Two different U.S. one cent coins are dated 1857. A large cent and a small cent. Post new question with more information.
Benjamin Franklin is on the 1948-1963 Silver Half Dollars.
A U.S. fifty cent piece dated 1961 is a Franklin half dollar. The coin is not rare, if it shows any wear the value is about $12.00 just for the silver.
No US two cent coins dated 1819 the first year was 1864. Please look at the coin again
The last Franklin half dollar was dated 1963.
well-worn = $10 lightly worn = $20
The coin is still in circulation today and its just 50 cents.