My feeling is not, it just doesn't have the look, and no beveled edges at all. My feeling is that this was a consumer purchase that mostly sat in the shed. Commercial use of this tool would never leave it in such fine condition.
I never suggested it actually saw commercial use but it seems to me that is what it was meant for. Hardened poll heads are not necessarily bevelled at the corners, and and what I find curious is that an OEM straight haft certainly indicates the potential for blade and poll end use.