Original Item: Only One Available. This is a very nice original late-WWII U.S. M1 helmet consisting of a rear-seam, swivel-bale shell manufactured by Schlueter, a correct Firestone high-pressure liner, original-style khaki chinstrap, and a period-applied helmet net. The complete set shows honest service wear and may have remained in use after WWII, but it retains an excellent overall appearance.

The M1 helmet entered production in 1941 and remained the standard American combat helmet through WWII and for decades afterward. The helmet consisted of a protective steel shell worn over a removable fiber liner containing the suspension and sweatband. Schlueter began producing M1 helmet shells in 1943 and marked its shells with an “S” beneath the heat-lot number.

The heat-lot marking inside this shell is heavily worn, and only the lower: S

Can now be clearly read. This confirms manufacture by Schlueter Manufacturing Company. Schlueter shells are also recognizable by their somewhat straighter rim profile and smaller, rounder rim welds when compared with McCord-produced examples.

The shell has the desirable late-war combination of swivel chinstrap bales and a rear-seam rim. Fixed bales were replaced during wartime production because they were prone to breaking, while the stainless steel rim was later replaced with manganese steel and its joining seam moved from the front to the rear. U.S. Army references date the transition to the manganese-steel rear-seam configuration to 1944.

The shell retains a cork-textured olive-drab finish with substantial wear, scratches, scuffs, and areas of paint loss consistent with military service. It may have been repainted for continued use during the Korean War era or afterward, although the exact date of the present finish cannot be determined.

The original-style khaki web chinstrap remains attached and retains its stamped brass hardware. Both the shell and strap are in very good overall condition, with expected age and service wear.

On the underside of the front brim is a painted marking that appears to read: HQ 704 O-2

The marking was later painted over but remains partly visible beneath the newer finish. It may represent a headquarters, unit, inventory, or ownership marking. Its exact meaning and date have not been confirmed.

The liner is a correct WWII high-pressure example manufactured by the Firestone Tire & Rubber Company of Akron, Ohio. It is embossed in the crown with the Firestone:

F

Logo above:

F7

Firestone was one of the major manufacturers of M1 helmet liners during WWII. The liner retains the frontal insignia eyelet and OD No. 3 cotton HBT suspension associated with wartime production. The U.S. Army Quartermaster Museum notes that OD No. 3 suspension webbing is characteristic of WWII-stock liners rather than later Korean War production.

The suspension remains in good condition and is secured with the correct rivets and triangular A-washers. The three upper suspension bands are joined with the correct olive-drab adjustment cord.

The original sweatband remains present and is worn but still solid. It bears the laundry number: M-9390

This marking may provide some potential for additional research, although laundry numbers were not unique identifiers and cannot establish the original wearer without supporting documentation.

The liner chinstrap is original but is broken on one side, as shown in the photographs. The leather and hardware should be handled carefully to prevent further separation.

The helmet retains an excellent period net that has become somewhat stiff with age but remains solid and displays extremely well. The net appears to have been fitted for a considerable period, although there is no documentation confirming when it was first applied or whether it was originally issued with this exact helmet.

The combination of a late-war Schlueter rear-seam shell, swivel bales, Firestone liner, original-style khaki chinstrap, named sweatband, partially obscured painted marking, and period helmet net gives this set an especially convincing service-used appearance. It would make a strong addition to any advanced U.S. WWII helmet, infantry equipment, or uniform display.