The mint mark is on the reverse of the coin between the tail and the D in the word dollar.
The mint mark on a Barber Half Dollar is located on the reverse side right under the tail of the eagle.
It was made at the Philadelphia Mint, 1980 was the first year a "P" mintmark was used on a half dollar.
Please post a new and more specific question with the coin's date and mint mark (if any).
The first Half dollar with any mint mark was from the New Orleans Mint in 1838.The mint mark is on the reverse under the eagle
No mint mark indicates that the coin was minted in Philadelphia.
The 1920 Half Dollar - aka - Liberty Walking - mint mark of "D" or "S" would be located on the reverse side, just to the left and above the "H" in half dollar.
The mint mark on Franklin half dollars is on the reverse side, just above the Liberty Bell.
This design is normally called a "Barber" half dollar after the artist who designed it, Charles Barber. It was struck at four different mints so you need to look for a mint mark under the eagle's tail feathers. Retail prices as of 10/2008 are roughly: No mint mark, D, or O: $12 if worn, $35 with moderate wear, $170 if almost new With an S: $17 / $140 / $245
No, 234,308,000 were struck at the Philadelphia Mint and will not have mintmarks.
The mint mark on a 1936 Walking Liberty half dollar is located on the reverse [tails] side of the coin in the little "valley" just to the left of the word "HALF" near the edge of the rim.
Not being certain which half dollar you have, I can tell you that there was never an "A" or a "N" mint mark. The letters you should find will be a "D", an "S", an "O", a "P" or a "CC"
An uncirculated Philadelphia half from 1972 retails for about $1.