Beware of buying Beatles signatures from just anyone, alot of current autos of the FAB FOUR for sale right now are all secretary signed. The web site for UACC has a great signature study on it with examples of the real deal! USE IT BEFORE YOU BID!! ITs wwwuaccorg just do a google search for it, it you will save yourself  money. A coa is worthless its just a piece of paper. Do your research I myself had told several people selling these that theirs were not real but they dont seem to tell YOU THE BIDDERS. They just get what they can. Use all resources available to you! Good Luck and HAPPY HUNTING!!!!!