Leather Liner Chin Strap II - “Removable Assembly”
The Army felt that the inability for the liner's leather chin strap to be replaced to be a major deficiency in design.
Leather Liner Chin Strap I - "Permanent Assembly"
The second major complaint the Army had with the initial M-1 helmet liner was the design of the leather chin strap assembly.
Pub Talk
"How to properly preserve your helmet collection"
You are the custodian and conservator of the history you collect and the decisions you make will have lasting effects for the items in your collection.
M-1 Liner Suspension System “Adjustable Head Band IV”
The adjustable head band continued to have minor improvements made from the original design in 1942 until the Spring of 1944 when the Army was satisfied with its design and performance.
M-1 Liner Suspension System “Adjustable Head Band III”
While the spring clip was a marked improvement over snap fasteners, some would not stay "clipped" shut.