Evening Ted. I've not seen this combination of marking before either but, given the relatively low value of Zuckerman helmets, I'm not sure anyone would spend the time and effort to fake the tat-bazar example. (I think most helmet fraudsters are getting handy with Normandy cam on Spanish helmets, etc.) I have, however, seen some very oddly painted - but absolutely period - Zuckerman: particularly those associated with commercial concerns. I look forward to hearing more!
All the very best.
A