New Member Braves Ernesto Mejia Bat Question

[emst51]

Im a new member and a giant Atlanta Braves fan. Ive been collecting autographs for about 5 years. Ive only been collecting game used items for about 2 or 3 years and ive only been real serious about it for about the last year.

I recently aquired and Ernesto Mejia bat and I found it to be a little odd. Its a Louisville Slugger m9. The knob is stamped with the date 01/19/12 and the size and weight 34.0/32.5. The only thing that looks to be stamped on the barrel is I13 and the rest looks to be witten by an Ink pen. Would a minor league player get a bat with nothing stamped on the barrel?

Thanks
Dustin