Recently, I acquired a McGwire bat that was said to be obtained during the '98 season from a St louis club house attendant. It's an issued bat with a few rack marks on the barrel, but no use. The story is the cardinals ordered 4 dozen of these bats for him to use during BP & or be signed and auctioned off for the cardinals charity. My question is the bat measures 33-34" but nothing is stamped or written on the knob. Furthermore, Mark McGwire with Cardinals is stamped on the barrel. Is there a reason why the bat is not stamped? Are there any examples of this on the market/hobby? Thank you in advance!