Quarter Dollar

Hey all I have these quarter dollar. I don’t have a lot of coin knowledge But I do know and learned different things to look for. Dates of some coins, dye mismatch , double dyes , and the wrong metal showing on the coin (ex) silver with a mix of copper zinc tin etc…. These 3 coins seem to be error coins have a few diffrent errors on it I can see( rim round coin seems slim. Seems as it says in cod we trust. The D on the right hand side isn’t a D. The hair indentation isn’t there . Some maybe able to enlighten me more and express there thoughts or dm me
Thanks for you’re time

Most of what you are seeing for the 1974 D is the result of wear (no hairlines, part of the G missing). The edge is normal because the coin has a sandwich (clad) composition.

1995: Nothing abnormal, the reeding is worn down, and the copper core is showing

1974-D: It's a "D" but the central hole in the "D" was filled (very common)

2014: The Washington device reverted back to the original John Flanagan design for the America The Beautiful (ATB) coins. No more spaghetti head!