Steve,
My pleasure; the original culprit is Chris Simmonds and Roy-Magne Mo, though
As for your Bf 109 K-4, you're correct: it is actually W.Nr. 334 183 which we can pin down thanks to this other picture showing it in the same position next to a II./JG 3 (white tail band and horizontal black Gruppe bar) 109 G:
https://www.flickr.com/photos/280920...-cVU1FA-cVU22s
Source: Mol and Poruba 2000, p. 38.