Barry Sanders autographs

[tysonk]

Barry Sanders autograph seem to have two different styles with the big B and S. Saw two with Beckett and psa authenticated that were highly different. tried to post pics. Does anyone know why there are 2 different types. any help would be appreciated. The 3rd is the commonly seen one I was referring to.

 

[tysonk]

 

[Waltdii]

Barry is one of the old school that actually has a legible signature. I am guessing the Beckett one he was standing and holding the card and the PSA he was seated and the card was on a table to sign where he could take his time, but only a guess.