Hello, I am new to this site. I have a question. we have been saving coins for years and decided to go on vacation and decided to cash our coins in. we started going through them and found 2 1978 quarters with a dot on each one of them by the ponytail. Is there a value to these because we have 1977 quarters, some with dots and some without. any help would be appreciated. We are not sure if the 1978 is supposed to have a dot or not.