Ok, I'm new here and I thought I should have got that out of the way. Anyhow, I have these coins:
1922
Peace dollar I paid $25 for it

Reverse

1889
Morgan dollar I paid $10.50! (I see some going for $30-$60!)

Reverse

Also, it says XF in the corner, but I just wanted to make sure.
1937
Walking Liberty half I paid $15 for it
(it says $20 in the corner, but some guy at the flea market really likes me because I go there almost every week, so he gives me discounts.) This one says M.S.60, but I still think that it's better.

Reverse

1969 D
Franklin half dollar I paid $10

Reverse

I was also wondering if the
Peace dollar and the Franklin Dollar were cleaned because they are very shiny, almost to shiny, but if you look closely, you can see some dirt in between the numbers on for the date on the
Franklin half and on the top and sides of the reverse of the
Peace dollar. Also, both of them don't have the "cartwheel effect". And last, why is the reverse of the
Morgan dollar cleaner than the obverse, the obverse looks kind of yellowish, while the reverse more silvery colored.(It might be hard to notice in the pictures.)