Old Infantry Class Progression Info

[Voldirs]

                                                                                                                       
I'm only infantry, and I already bought the One Handed Battle Axe of someone at the auction house and am capable of using it. Though that does explain why I can't pick it up if  drop it... Is this a known glitch or fault in the system that I'm unknowingly exploiting?

There are 2 types oh One Handed Battle Axe(they have the same name), first was unlocked at infantry and second at heavy infantry. You cant take axe, probably because of lack of strenght