Only coins have mint marks because the U.S. Mint only makes coins.
Bills are printed by the Bureau of Engraving and Printing, which has only 2 facilities. The main plant in Washington DC doesn't put any special designation on its bills. The auxiliary facility in Fort Worth marks its bills with a tiny "FW" next to one of the plate designators. It may be in different places on different bills so you have to look closely for it.
US bills don't have mint marks because they're not made by the Mint. The Mint only makes coins.
However you can still tell where a bill was made by looking for the plate position indicator, usually on the front. It consists of a letter followed by a small number, for example C110. If there's a tiny "FW" in front of the letter the bill was printed in Fort Worth; otherwise it was made in Washington.
US Coins with no mint mark were minted at the US Mint's main facility in Philadelphia, Pennsylvania.
The U.S. Mint doesn't produce dollar bills.
The mint mark on a US Trade Dollar is located on the reverse [tails] side of the coin just above the letter "D" in "DOLLAR". No mint mark = Philadelphia S = San Francisco CC = Carson City
The "O" mint mark represents the US mint at New Orleans, Louisiana .
Any US coin without a mint mark was minted in Philadelphia, because for a while, it was the only mint.
United states mint
The mint mark on an 1848 US dollar coin can be found on the reverse side of the coin, below the eagle and above the "M" in the word "DOLLAR." If the coin was minted in Philadelphia, there will be no mint mark present, as the Philadelphia Mint did not use mint marks until 1979.
One Dollar
If the coin has a mintmark, it's on the reverse above the letters DO in dollar.
Yes the us mint made a 1000 dollar bill with grover cleveland.
The "P" Mint mark was not used on any US $1 coin until 1979. Your coin was struck in Philadelphia
The mint mark position is on the back, just above the bell's yoke. The letter, if present, will be very small:No mint mark = PhiladelphiaD = DenverS = San Francisco