Thanks! Yes probably a vorwerk. I forgot I ordered some in the fertile egg adventure of last year. Seriously I had the worst hatch rates ever out of separate egg orders - got one vorwerk & one Sussex, although the araucanas and cream leg bars & ducks were great.
Had a mix of eggs from different suppliers last spring with a lousy hatch rate . Have hatched many eggs over the years but apparently that season was for some reason not good ( not just me- other locals noticed it too). Anyway, as a result have a random chook I’m not sure what it is.