Vintage Cairns & Bros Leather Fire Helmet NOS Model 5A

Description

Vintage Cairns & Bros  Leather Fire Helmet  NOS.
I was informed that this helmet is a Model 5A; it was incorrectly (misread) listed previously as "314".
The listing was now corrected to reflect this.
Never used.
From the late 1970's
Model is 5A according to the inside tag.
Has small white paint mark on the left side of rim about 1 1/2" long as pictured.
Size is 6 7/8  -  7 1/2  Medium according to the inside white tag
Lining is CKE according to the inside white tag
See Picture
On Aug-23-21 at 14:38:43 PDT, seller added the following information:
The letter code on the red center medallion (left side) reads "O"
I believe this translates to a date of manufacture of 1975-1976.
See Photo