Hood Rubber Company
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THE HOOD RUBBER COMPANY
Manufactured in Watertown, Massachusetts this “ball winding” manufactured M-1 helmet liner is identified by an unusually patterned shell and by the silver painted “HR” in the crown (worn off in this example). The Hood Rubber Company started M-1 helmet liner delivery to the US Army in April 1942. They produced approximately 206,000 M-1 helmet liners and discontinued production in early 1944 when their contract was not renewed.
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St. Clair
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THE ST. CLAIR LINER
Manufactured in Marysville, Michigan this “low pressure” M-1 helmet liner is identified both by an unusually patterned shell and by the yellow painted “SC” in the crown. The St. Clair M-1 helmet liner started M-1 helmet liner delivery to the US Army in April 1942. They produced approximately 1,300,000 M-1 helmet liners and discontinued production in early 1944 when their contract was not renewed.
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Capac Manufacturing Company
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CAPAC MANUFACTURING COMPANY
Manufactured in Capac, Michigan this “high pressure” manufactured M-1 helmet liner is identified by an embossed “cross” with the words “Capac” in the crown. Capac Manufacturing Company started M-1 helmet liner delivery to the US Army in September 1942. They produced approximately between 2,000,000 – 4,000,000 M-1 helmet liners and discontinued production around August 17 1945 when the war ended.
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Firestone
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FIRESTONE TIRE & RUBBER COMPANY
Manufactured in Akron, Ohio this “high pressure” manufactured M-1 helmet liner is identified by an embossed “F” in the crown. Firestone Tire and Rubber Company started M-1 helmet liner delivery to the US Army in September 1942. They produced approximately 7,500,000 M-1 helmet liners and discontinued production around August 17 1945 when the war ended.
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Inland Manufacturing Division
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INLAND MANUFACTURING DIVISION
Manufactured in Dayton, Ohio this “high pressure” manufactured M-1 helmet liner is identified by an embossed “INLAND” in the crown. Inland Manufacturing Division started M-1 helmet liner delivery to the US Army in September 1942. They produced approximately 1,900,000 M-1 helmet liners and converted about 75,000 liners to airborne configuration. Inland Manufacturing discontinued M-1 helmet liner production in 1943 when their manufacturing services were deemed better used elsewhere.
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International Molded Plastics, Inc
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INTERNATIONAL MOLDED PLASTICS, INC (IMP)
Manufactured in Watertown, Massachusetts this “high pressure” manufactured M-1 helmet liner is identified by an embossed “little man” in a circle in the crown. International Molded Plastics, Inc (IMP) started M-1 helmet liner delivery to the US Army in September 1942. They produced approximately between 2,000,000 – 4,000,000 M-1 helmet liners and discontinued producton around August 17, 1945 when the war ended
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Mine Safety Appliance (MSA)
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MINE SAFETY APPLIANCE (MSA)
Manufactured in Pittsburgh, Pennslyvannia this "high pressure" manufactured M-1 helmet liner is identified by an embossed "MSA" in the crown. Mine Safety Appliance started M-1 helmet liner delivery to the US Army in September 1942. They produced approximately between 2,000,000 - 4,000,000 M-1 helmet liners and discontinued producton around August 17, 1945 when the war ended
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Seaman Paper Company
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SEAMAN PAPER COMPANY
Manufactured in Chicago, Illinois this "high pressure" maufactured M-1 helmet liner is identified by an embossed "S" in the crown. Seaman Paper Company started delivery to the US Army in September 1942. They produced approximately between 2,000,000 - 4,000,000 M-1 helmet liners and discontinued production around August 17, 1945 when the war ended.
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Westinghouse Electric Company
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WESTINGHOUSE ELECTRIC COMPANY
Manufactured in Pittsburgh, Pennsylvannia this "high pressure" manufactured M-1 helmet liner is identified by an embossed "W" in the crown (which is still Westinghouse's logo to this day). Westinghouse was the largest M-1 helmet liner producer and had two production divisions; Micarta and Bryant Electric. The Micarta Division produced about 13,000,000 M-1 helmet liners and the Bryant Electric Division about 10,000,000. Westinghouse Electric Company started M-1 helmet liner delivery in May 1942. Westinghouse did have a contract to producce airborne liners and converted an unknown amount to airborne configuration. Westinghouse discontinued production around August 17, 1945 when the war ended.
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Model 1951 / 1952 Liner
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MODEL 1951/1952 LINER
Manufactured by both Capac and Westinghouse (Micarta Division only) these M-1 helmet liners are identical to the WWII liner except that the internal HBT cloth is a dark green olive drab #7. These liners are identified by two types of manufacturer stamps, on set of "W" and "CAPAC" are embossed into the crown and the other is an ink stamp of the word "MICARTA" that is attached to the interior of the liner.
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Model 1958 Liner
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MODEL P55 LINER
The model P55 M-1 helmet liner marked several changes. The US M-1 helmet liner would no longer be made from compressed strips of duckcloth. It was now made from a laminated nylon (I cannot tell the difference). The liner would retain a suspension made from a different type of suspension cloth that was sturdier. The most notable change was that the distinctive frontal eyelet was removed.
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