Congrats Karel, phenomenal condition on that piece! Yes the M15 Wurtt, is a very scarce beast, it took me over 10 years to find mine and I actually beat Tony on finding one. In my experience finding an M15 goes in this order...Prussian, Baden, Bavarian, Saxon, Wurttemberg, followed by the really rare ones like Oldenberg etc. I have never understood why Baden infantry helmets are quite common.