Washington Quarter grade input?

A dear friend just gave my son a Whitman book of Washington quarters that her late husband had partially assembled. It is such a marvelous collection and an overwhelming kindness on her part. Most of the coins are in the XF-MS range. Below are two pieces I'd love input on. The 37S has some discoloration which I'd love input on potential remedies.
I have acetone if that will help. I'd love any grade input as Washington quarters aren't my strong suit.
Thanks!

 

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If it were mine, I'd leave it alone.

Chris

 

Agreed, Perty the way it is.

 

What dose the 32' D&S look like?

 

They are MIA
The rest of the book (past '42) is full.

 

Also, here's a 2010 I got my son for his birthday. Might be an error...washington's head looks a little misshapen