Congrats, and welcome! I'll preface by saying that I don't collect baseball. I looked through Getty Images a bit and they seem very close to a pair he is shown wearing in May 1993. I've included a few links below:

http://www.gettyimages.com/detail/ne...-photo/1402853

http://www.gettyimages.com/detail/ne...-photo/1402842

http://www.gettyimages.com/detail/ne...-photo/1402801

I'm sure the baseball folks can point you to an authenticator, but I would imagine that Mears could be of assistance. How did you acquire them?