Hi Steve:
I have only two Württemberg Mannschaften Wappen to compare with yours: one from an Ersatz Tin "kit" helmet and one M15. However, a feature common to both is voided areas at 4 and 8 o'clock at the base of the Württ Coat of Arms. By comparison, your Wappen is only voided at 6 o'clock around the und.
I would expect this error in an electroformed copy but not an original die stamping. I have to agree with the "quorum."
Chas.