I found a couple more photos in my references of H's with zim on both side schurzen and turret schurzen. These included zim on the face of the turret and at the base of the gun but none of my references show anything on the turret sides of a IV. I do have a photo of a IV with the "shadow" of zimmerit (where it had been removed)on the face of the turret and on the lower angled corners, but the sides of the turret look clean. If we take the OKH order as a resource it states that zimm is not for the turrets so the front of the turret is evidently out of spec. AS most of the photos show a relatively neat and precise application on the turret face, I assume it is factory applied, unlike the rough "field application" zimmerit we see that looks much more haphazard on its identified examples.
This is an area of research where a concerted bit of detective work needs to be done. Somewhere, in all the paperwork that was generated by the german industrial machine, there has to be an actual general order or production order, factory order, spec sheet, drawing, some sort of factory documentation yadda yadda, that clearly defines the application and procedure for zimmerit. I have a copy of a kettenkrad manual that actually talks about taking the front wheel off for use in extremely rough terrain (since the front wheel was really only for stability at higher speeds) yet one of the most elusive things in reference material outside of a few general orders, allied evaluation information or photo documentation, is zimmerit.
Thanks for the back and forth guys. I'm enjoying it.
Mike
"Imagination is the dye that colors our lives"
Marcus Aurellius
A good friend will come and bail you out of jail...but, a true friend will be sitting next to you saying, "Damn...that was fun!"