When the centerbrand says “Made By” instead of the players initials (TC, in this instance), it is a Professional Model Bat. The initials within the centerbrand would indicate a store model Bat. The professional models were typically Hand turned and featured better wood, finer grain, etc.
Here’s an example that recently closed with authentication from Taube and Mears...
http://sports.mearsonlineauctions.co...LOT122182.aspx