Hi ,
Complete lack of wear always raises suspicion especially in glasses that are 100 plus years old,regarding this glass I would suspect that both the foot and the bowl have been attacked by the grinding wheel , a beveled edge to the bowl rim is not what would be normally found on a glass like this,they are fire polished,and the foot just looks a little mean, which along with the lack of wear suggests it too may have been tidied up.
cheers ,
Peter.