French F1′ question
Just wondering if anybody can shed light on the different f1 variation’s ,my pair are dated 1987 and 88 yet both show a slightly different star crown pad ,extra vent holes on one one example shows the earlier chinstrap and the other the latter did this changeover occur in this one year gap also the rear mount has a pop stud ,just wondering if this is a often found ,my guess is for hanging of the webbing but im not 100% 
