For the first time my bank had some halves($20) the best was a 1968 silver,my first.At least half are bicentennial but the others i can't seem to find a list for the NIFC dates.In the dimes no silver but this nice 1967,looks a lot better in person for a BU worn die strike.
I have been using a silver jewelry dip I get at Walmart. I have used it for years and have never had a bad result. Of course, I wouldn't use it on anything other than common coins. It comes in a red container about the size of a coffee cup. It only needs a few seconds in the dip and then rinse with water.
I love it like it is. It took a lot of time to get there. It's still got its luster, and good eye-movement through it. I wouldn't kill it.