Welcome to SCF I agree with redwoodrandy
Take your time. I have always heard not to clean collectibles.
Try to find out what you have. You have come to the right place for
answers, once your questions are specific. Try to do some research with links to sites offered on many threads. When you have a question,
sometimes you can search for it, at the top of your page, on the search tab.
Read, relax and you will learn.