T206 Cobb Old Mill question?
 

I am the owner of a T206 Ty Cobb Bat on Shoulder with an Old Mill back [NFS). Per PSA pop report there are only three total that have been graded and I can’t find any examples of ones that have sold. How rare is this item? Any back story to why it seems to be much harder to find than other Cobb-Old Mill backs? SORRY - MOVED TO PROPER FORUM