If there is no mintmark on your 1974 Kennedy half, that simply means it was minted at the main mint in Philadelphia. Very common -- no added value in circulated condition -- perhaps a dollar or two for a nice uncirculated one.
It is worth about $12 if in circulated condition and about $30 if uncirculated.
$35 to $300,000 depending upon the mint mark and the condition of the coin.'
1905 Liberty nickels were only minted at Philadelphia, so they do not carry a mint mark.
The value of a 1973 Kennedy half dollar can vary depending on its condition and mint mark. In circulated condition, it is typically worth its face value of 50 cents. If it is in uncirculated condition, it may be worth slightly more to collectors. A 1973 Kennedy half dollar with an "S" mint mark from the San Francisco Mint in uncirculated condition could be worth around $2-$3.
$100 to $15,000 depending upon the mint mark and the condition of the coin.
A Kennedy Half Dollar that was minted in 2007 and carries a mint mark of "S," was produced in clad and silver. The clad in a proof state is worth: $4; in silver, the value is: $7.00.
The 1892-O half dollar is one of the more valuable half dollars. It's worth at least $200 and upwards of almost $800 depending on condition.
im pretty sure that its worth 3 to 10 dollars im not entirely sure though....
The 1946 walking liberty half is a common date, but because it is 90% silver, it is worth around $10.50 in common circulated condition.
For the year 1923 the US only struck 2 types of half dollar coins, a business strike Walking Liberty half with a "S" mint mark and a Monroe Doctrine Centennial Commemorative half dollar also with a "S" mint mark. With out knowing which one you have a assessment is not possible. Post new question with more info.
It's worth exactly 50 cents.
The mint mark on a Barber Half Dollar is located on the reverse side right under the tail of the eagle.