I've seen and photographed the ESB tour helmet some 35 years ago, and in the DPDLX I have unknowingly owned a replica of the ROTJ tour helmet for 20 years. With respect to OT tour helmets I'm batting 0.667!
I mentioned the ESB stunt in relation to the DPDLX because I see some, not all, traits that are similar (eyebrow arc, mouth vent, dome shape, cheek corner height, mouth droop). Here in what is probably the least flattering picture I've ever taken of my helmet, I tried to match the lighting and angle of the ESB stunt. I did a horizontal flip of the DLDPX photo to match the same as it appeared in the movie screenshot. What a mouth droop! It's even more apparent in the mirror image.
It do wonder about the lineage (source mold and/or visual reference used) of all the OT tour helmets.
And I was even pondering whether any of the ANH tour helmets might have been used as references for the ESB production helmets; ESB tour for ROTJ production? There would certainly be more surviving tour helmets available to use for such efforts. I know it's more likely the tour helmets were leaf nodes in the lineage branching. And I am 100% sure that ROTJ tour helmets were not the basis for the ROTS helmet.
