Collection Of Silver Coins

Ok so one of my friends found out I collect coins and has been telling me that he and his grandma have a bunch of silver dollars but after a year of not seeing them I really doubted him and lost all hope until he said for me to look at his grandmas collection so I go over and little do I behold but over 50 silver dollars and a giant box full of miscellaneous coins!! As I'm looking over them I see a bunch of different styles half of the silver dollars are Morgan's and half are peace and as I'm looking the Morgan's over there is a 1878 double tail feather which I thought to be cool but then craziness hit me I flip over a 1890 and BOOM it's a cc!! I just stared at it for like 20 min thinking wow glad I looked at the collection. So the big box had 20 1964 UNC Kennedy's a barber half some Franklin halfs and like 10 silver dimes and just a bunch of wheat pennies and other normal change.but she also had some military payment certificates that her dad got from ww2 but I knew nothing on those do I couldn't give her a value on those and she had a booklet that during ww2 people would put stamps in and save for defensive efforts it says "postal savings plan for the purchase of United States savings bonds" she was told by someone else that it is very rare so I told her I would check it. And she had a bunch of other militaria that her dad had during ww2 like a German Mauser that was in pristine shape I mean unbelievablely good shape the bluing is perfect and the story is even better but most of you don't care about that. So at the end of it she says here you go and just gives me a 1890-O Morgan for free! I tryed to give her some money but wouldn't take any and we'll I got some pics that I can post later after I figure out how with the iPhone... Every time I post more than one pic it overrides all the pics and just posts one? Anyone know how to change this? Just thought that I'd share this story with you guys because I was so excited