Hope that some of you can see it in person in Cooperstown...
You can see closer pictures here:
https://www.christies.com/en/lot/lot-6021547
And the original auction write up....
JOSH GIBSON PROFESSIONAL MODEL BAT
A Spalding, Model Number 300 bat dating from the 1935 labeling period with the name J. GIBSON emblazoned upon the barrel. Exhibits outstanding use with a crack from the handle to the barrel that has been repaired with five small nails, slight checking (grain swelling) from repeated ball contact on the back barrel, many ball marks on the right and back barrel, and cleat marks on the handle. The bat also shows evidence of having been factory side written 39 oz W.A. Greenlee 5-8-35 Negro Natl League Pittsburgh PA and Greenlee Negro Natl League Pittsburgh pa 5-6. During the first half of the 20th Century, it was commonplace for players to send a preferred model bat back to the factory to request models of the same type. Once at the factory, it would be planed and inscribed with the length, weight, player’s name, date received and team affiliation. The Greenlee referred to on the side written bat is Gus Greenlee, owner of the Pittsburgh Crawfords for whom Josh Gibson famously played. As team owner, it is assumed he took responsibility for ordering additional bats for his players. Legendary Negro League slugger and Hall of Famer Josh Gibson (1911-1947) played for the Pittsburgh Crawfords from 1932-36, during the labeling period of the offered bat. Authenticated and graded by PSA/DNA GU 9.