A signifigant aid in figuring out how much your item may be worth! The first was DA, which stands for Defense Agency. It ran from to It was used from to If your item has a Manufacture's Stamp only - it was made prior to the beginning of the Korean War.

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A knowledge of when the particular item was used will narrow down the time frame. A date stamp may, or may not be present. Look for a two digit number, typically near the end of the code it will range from 53 to 61 for the exact year of manufacture of your item. DSA stamped items introduced a systematic dating process: If I am reading it right this helmet liner is from November or 68? Yes even with the dating system I am still not sure if I know what I am doing. Page 1 of 2 1 2 Next. Watertown, Massachusetts Identified by the image of a man with his hands on his hips within an oval and the letters 'IMP' across the bottom.

Please note, the 'IMP' letters are nearly impossible to see with a naked eye. Hawley Products Company, St. General Fibre Company Identification: Hawley Product Company Liners were stamped in capital black letters: General Fibre liners have a small black " G " stamped in the crown.

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This should be pinned. I read somewhere where some of the INLAND stamps were stamped backwards, frontwards, and sometimes both on the same liner. This is an image of an actual 'General' stamp. Watertown, Massachusetts Identified by a silver "HR" in the crown Thanks for the liner manufacturer identification stamp information. This really helps to tell who made my liners.

WW2 U.S. M1 Helmet - How to Restore a M1 Helmet / Convert a Post War helmet to a WWII One!

I have not found any. Posted January 31, Most of us already know the M1 helmet. Maybe not by title but most, if not all of us could probably point one out in a crowd without too much trouble. It has that distinct shape to it which distinguishes it from so many other helmets a timeless and endearing look. More than 22 million manufactured towards the end of the war in but its legacy did not end there. It also saw service in the Korean war and Vietnam war and is still in service in some parts of the world today albeit with many modifications from its original form.

I wanted to start this thread to try and help other members here at HWMF research and date where possible their own particular M1's. There are already a good many sites out there that can help you do this but my goal here is to try and centralize as much of that widespread information as I possibly can into one area. Hopefully I can come up with a reasonable quick reference point of most things M1 rather than what can feel like a mind numbing search of endless webpages on the subject. Admittedly all the right answers may not be found here but I would like to think this could be a good starting point for all to join in and add your own thoughts and of course your own contributions and pictures.

I will continue to add as much information to this thread as I possibly can with pictures, diagrams and documentation where possible. Basically any information that can benefit us all on this subject is I think - a worthy endeavour. US M1 - Helmet. To begin with the basics of the M1 we need to understand a little more about its composition and the various specifications involved.

Some of those elements have changed somewhat over the years but the M1 still retained in many respects its unique form.

  • US M1 helmet: date of manufacture.
  • M1 helmet lot numbers ww2-vietnam.
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Manufacturers of the M1 - Helmet. The steel shells or ''pots'' as they were better known were produced by two companies.

  • Dating the M1 Steel Helmet.
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McCord Radiator and manufacturing company, Detroit Michigan. McCord helmets were the greater produced of the two companies - Approx 20,, made. A unique feature of the M1 was its suspended liner system. In place to support the weight of the steel 'pot' and developed by a number of US manufacturers of the time. Posted February 1, How to date the US M1. Knowing what to look out for with most things militaria these days is never an easy task. Fortunately the history of the M1 is well documented. There are many tell tale signs that can help when trying to date a particular M1.

Firstly we can look at the shell itself for any distinguishable or identifying marks as to the helmet's origins. It is important to note that some marks can be a little harder to differentiate from and some things can be overlooked. Nevertheless there are always other aspects to pick up on when trying to date the M1 which with a little work and patience usually pays off. World War 2 saw millions produced of this unique for its time' helmet.

M1 helmet and liner identification?

On both pictures shown above we can see that the straps' are stitched in place. Posted February 2, The M1 has a noticeable seam that is found on the attached helmet rim. On early WW2 models this seam is found to the front of the helmet: July to October This was later changed to a rear seam configuration: November to Posted February 3, Another feature of the WW2 M1 we can look to for dating purposes is the helmets colour and paint texture. Earlier models were painted dark green OD and used a cork texture. Left is the postwar helmet - Right the WW2 model still with some of its cork texture visible and its darker green paint.

The colour for earlier M1 chinstraps was OD 3. This would change to OD 7 a little later in the war: It is important to remember that a lot of WW2 shells were reissued for use in the Korean war: These helmets would have undergone a refit at some stage.

Helmet Liner Manufacturer Identification Logo's & Markings

New straps and buckles may have been added along with new liners and a repaint all the way up to and through the Vietnam war. Each M-1 helmet shell was stamped from a single sheet of manganese steel. The helmet either McCord or Schlueter would also contain usually the brim area a heat stamp. Posted February 4, Differences in the appearance of each makers helmet can be found also. You can see this better in the shots below.

There are also some slight differences in the paint cork texture of the two models. The Schlueter also being slightly slimmer in shape compared to the McCord. Posted February 5, We know the M1-helmet to be an essential piece of the US infantry soldiers kit. But from its outset it was probably designed with a little more in mind than just saving the lives of military service personnel from fragmented explosions, falling and flying debris of all descriptions impacting on that most vulnerable part of the human frame.

Its shape was also to be a good retainer for many things liquid. A perfect tool out in the field for boiling up water that would have been used for shaving or cooking.