"Yes. You can send it to BAS, JSA or PSA. You can ask in a separate discussion for opinions regarding which company to use. They are all good. When you decide which company you will be using, call to ask if they can offer a…"
"Ryan replied to my questions privately. He said that Don Mattingly sometimes practices his signature before signing items to test the pen, and that the item could sell for anywhere between $50-200 without an LOA. He also said that the…"
"Why are you wondering what it might be worth? Are you interested in selling it? Please post an image of what you are referring to. Ryan is the Don Mattingly expert here. I will contact him in the meantime."
I’m new here looking for some advice. I have an old UPS delivery log signed 7 times in 1988 by Don Mattingly. I know it’s authentic because I worked for UPS at the time and was staging a delivery to the dugout at yankee stadium. I’m wondering what it might be worth. The See More