Thank you dear friend for full answer and useful comments. I think that you've solved some problems. your talk about B85 , PKD, and others are so near to truth. I've already had some such thought in my mind but I did not dare to say it. But i am so glad to hear these from you.
First of all I have a question. do you know NR Mack returned to America or stay in Iran?
By displaying these photos we can get new results !
an old 40' mack (with original hood and gril) that we have not seen these models recent years ! so why not today??
another old photo that shows a old mack with a different hood side with NR and Iranian Mack:
it is amazing !
today, and a mack interior in iran ! green, like a NR interior.. and dashbord's bulge look like B model :
another and different :
an old pictures from 1942 :
star! it seems L Mack was a military truck too!
star! perhaps it is military too. but it seems roof is unusual and painted in other color ! perhaps it was a NR and roof was welded !
nice! but in old photos from 1940' and pehaps 50' those unknown cabin are fewer !
one hypothesis :
according to your talk and my though, and mack's corage in iran's roads, i think after ww2 in iran small workshop created for convert NR cabin to public cabin for cilivian and people use. also simpleness body, roof, window, columns, and hood side are a proof for small workshop entity for cabin conversation.
on the other side, commercial american mack imported to iran (PKD) and workshop made simply cabin for their.
so after ww2 cabin of all models quietly converted to IranianMade cabin ! and we didnt see a NR cabin today !
but it is just a hypothesis !
here is some photos that shows a few old macks stayed more original than others :
Look at fenders, light's stand, and hood side!
and this hood side :
in dashboard photos one of those have a different dashboard's door, like a B model ! also hood side look like B model !
so i think it is possible that these cabin had a relation to B models !
i think our though is very near to truth ! i wish to find the real truth...