Ok, so this was in a brand new PSA 4 holder with the mk designation. But for the life of me I just couldn't find the mark. So I cracked it out and sent it to SGC figuring PSA got it wrong. And I ended up with this 2-that looks like a 5+. Oh well, my price is 180.00 paypal no fees to me please. Thanks for looking.
Joe
1921 W516-2-1 #27 Christy Mathewson.jpg
1921 W516-2-1 #27 Christy Mathewson (Back).jpg