Those are called "mint marks," because they indicate where the coin was minted. P stands for Philadelphia, and D means Denver. The value depends on the date, but given that the P mint mark wasn't added to quarters until 1980, any with that mark are worth 25 cents.
It is worth a quarter :D
i have a quarter with no back on it no date with a P
The mintmark is a "D" not a "P" and it's just a quarter.
a quarter
A 1999 P US quarter is worth a book value of $0.30. No one will pay you more than 25 cents for this coin though since they are so common. My advice is to save the D quarters from the state years. These are not as common as a P coin.
25 cents.
twenty-five cents
The location the quarter was minted. I believe "D" is for Denver Colorado and "P" is for Philadelphia Pennsylvania.
It's worth 25 cents.
A 1958-D Washington quarter is very common. Most are only valued for the silver, about $5.00.
The Philadelphia Mint hasn't produced silver coinage for circulation since 1964. A 2003-P state quarter is worth 25 cents.
Circulating state quarters are worth face value only.