Thanks Jürgen, didn´t notice the details on my phone here
I am pretty well versed in Wilesco...or mostly their history and engines that is, as i´ve never paid much attention to "ordinary" accessories. Do however have the Josef Wagner history in place as well.
I merely assumed they were of that brand, primarely because they (to a novice as i) make identical accessories (M74 & M76), and secondarely because that would be the obvious choice for me, to modify something currently available.