The General Services Administration didn't exist in 1861 and never struck any coins. Perhaps you mean CSA - Confederate States of America. There were only 4 original CSA half dollars, all from one die, so if one has die cracks, I'm sure they all do. And they are all accounted for in collections. The dies were later used by a private company to make approximately 500 "restrikes", which are fairly valuable, with or without any die cracks. i found an 1861 half dollar no mint mark with a pie part missing about one eighth this coin is not i repeat not silver it is copper on my metal detector and other metal detectors read copper. it looks real dark brown. this is a seated liberty coin with grooves on the side of the coins edge. i guess where it was minted. i am not a coin collector i found this metal detecting. yes i would like to sell it but dont know who wants it.
Kennedy halves from 1968 to date have obverse (front) mintmarks. The "P" mintmark was not used until 1980. If no mintmark it was struck in Philadelphia.
The last Morgan dollar was struck in 1921. You have a Peace dollar. Please see the Related Question for more information.
It islikely the obverse die was filled by grease or other crud when it was struck. A very common thing. as to value maybe a dollar.
The mint mark of the Denver Mint (shown as a "D") and the San Francisco Mint (shown as "S) on the Eisenhower Dollar is located on the obverse (heads) side of the coin directly beneath the bust of Eisenhower. If there is no mint mark there, then the coin was struck at the Philadelphia Mint and in this mint did not place a mint mark on the coins struck there until 1979.
Not all coins have mintmarks. If this Franklin half dollar has one, it's on the reverse between the yoke of the bell (at the top) and the E in the word STATES and can only be a D or S. If no mintmark, it was struck in Philadelphia. The Mint did not use obverse mintmarks on halves until 1968.
If I understand the question, you have a Sacagawea dollar coin with no date on the obverse (front) of the coin and you think it should have a 2000 date on it? The coin was made after 2008. From 2009 to date, the year the coin was struck in is on the edge of the coin.
Your coin is a Morgan dollar. Both the Morgan and Peace designs were struck in 1921, but the Morgan coins are much more common. Please see the Related Question for more information.
It can't be a Liberty head dollar with Eisenhower on the obverse, but in general none of the Eisenhower dollars regardless of date or mintmark struck for general circulation have more than face value. Only proof and uncirculated collectors coins sold from the Mint have premiums.
There is no information because the presidential dollar series is being struck in the same copper-manganese alloy as the Sacajawea dollar coins. None are in sterling silver.
Your coin is an Eisenhower dollar rather than a Liberty dollar. In average condition it's only worth face value. US coins are usually named for either the image they carry on their obverse (front) or for their designer rather than for the wording on them. ALL modern US coins carry the word LIBERTY or an image of Miss Liberty so that's not really a distinguishing characteristic. The last $1 coins to have a portrait of Miss Liberty on the front were struck back in 1935.
Please check your coin again. 1921-dated Peace dollars were only struck at Philadelphia. If your coin has a "D" above the "DO" in "DOLLAR" and the eagle's wings are outstretched, you have a Morgan dollar rather than a Peace dollar. There's more information at the question "What is the value of a 1921 Morgan silver dollar?"
Please look at the date again, no US dollar coins were struck in 1932, but they were struck in 1934 & 1935