There has never been an A mint mark. You're looking at the designer's monogram.
The mint mark will be on the back between the word ONE and the eagle's tail feathers. See the related question for more details.
Chat with our AI personalities
The US did not print any two dollar silver certificates after 1899.
It is worth whatever melt is. The silver dollar is damaged and they never use rare dates (the 1928 peace dollar is rare, it is likely a 1928-S coin which is quite common) and so it would be worth about $20 for the coin. However, there is the question on whether the money clip itself is silver, usually the clip would be marked "STERLING" or 925 if it is silver. If the clip is silver, you have added value with whatever the weight of the silver clip is.
The Denver mint did not strike any silver dollars in 1928. You may have a 1928-S where the S is indistinct. This coin is worth $20 to $30 depending on condition.
Your 1928 eagle silver dollar is actually a 1928 PEACE dollar, the first Silver Eagle bullion coin was made in 1986. But for this year of issue Peace dollar it's very important to see if there is a mintmark (S) on the reverse just above the eagles tail it makes a big difference in value. If you see the S a low value for the coin is $16.00 no S low value is $250.00. Take it to a dealer or collector for an assessment
Your 1928 silver dollar is a "PEACE" dollar. For this year of issue it's very important to see if there is a mintmark (S) on the reverse, it's just above the tip of the eagles folded wings, very close to the rim. It makes a big difference in value. If you see the S a low value for the coin is $30.00. A coin with no S, low value is $235.00. Take it to a dealer or collector for an assessment.