Fall 2026 Militaria and Aviation Auction

Firestone M1 Liner, Painted 25 AEB Insignia

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Start price: $20

Estimated price: $100 - $300

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Description

U.S. WWII Firestone M1 Helmet Liner with Hand-Painted "25 / AEB" Red Triangle Insignia of the 25th Armored Engineer Battalion, 2nd Armored Division, Later Adapted for Cold War-Era Maneuver/Aggressor Use Offered here is a WWII-manufactured M1 helmet liner produced by the Firestone Tire & Rubber Company of Akron, Ohio, later hand-painted and repurposed to represent the 25th Armored Engineer Battalion of the 2nd Armored Division, the storied "Hell on Wheels" outfit. No separate published biography accompanies this liner; its story is told through the painted insignia, the maker’s mark, and the surviving suspension hardware, all consistent with documented postwar and Cold War-era unit and maneuver practices. The M1 liner was developed early in American mobilization to provide a lightweight, form-fitting insert worn beneath the steel M1 helmet shell, and Firestone was among the principal wartime contractors producing these liners from high-pressure, resin-impregnated cotton duck. Following the war, large quantities of liners and shells remained in Army stores, and through the late 1940s and into the 1950s many were refurbished, repainted, and issued to armored and mechanized units for garrison duty, field maneuvers, and the simulated "Aggressor Force" exercises that became a hallmark of Cold War readiness training. The 25th Armored Engineer Battalion served as the organic combat engineer element of the 2nd Armored Division, responsible for bridging, demolitions, and mobility support for the division’s tank and infantry elements, and hand-painted unit triangles of this type were a common field expedient for rapid visual identification during large-scale maneuvers. The liner is finished overall in olive-green paint, with a hand-painted red triangle to the front right quarter lettered "25" over "AEB" in white block stencil. An embossed Firestone maker’s mark, a stylized "F" within a shield, is visible pressed into the resin-impregnated shell within the crown. The interior retains its herringbone-twill (HBT) suspension webbing gathered at the crown by the original tie string, blackened brass A-washers securing the suspension to the shell, a leather sweatband showing light drying and edge creasing consistent with genuine age, and a partial leather chinstrap section along the exterior edge. The rear nape strap bears faint hand-inked initials, now difficult to fully decipher, evidently a period soldier’s personal marking. A strip of paper tape numbered "91" is affixed to the interior crown webbing, apparently a later inventory or collection marking. Overall the liner presents in very good vintage condition: the painted finish and insignia remain largely intact with only minor scuffing and light surface contact marks consistent with honest use, while the suspension webbing, A-washers, and sweatband remain sound and complete. A visually striking Firestone M1 liner whose bold "25 AEB" triangle insignia ties it directly to the 2nd Armored Division’s engineer battalion and to the postwar maneuver culture that kept Hell on Wheels sharp through the early Cold War.