where can i get my coins checked for errors and valued

i have many old coins 1940&43 mercury dimes silver dollars and so on but mostly wheat pennys like 1918,1919,1928 ,30's mostly 40's like the
43 steel but ..1 of my quarters a 2001 Rhode Island P is messed up like its been slammed or something but i think its an error because it still has fine detail ..the face is wrinkled and the back has some dent like spots ill try to give a picture to help if anyone can check it out