Understanding the sun helmets of the U.S. Army and even the United States Marine Corps that were used during the 19th century is rather simple as it comes down to the Model 1880, Model 1887 and Model 1989 helmets. These were the three main helmets used by regular Army – while the USMC did apparently use the Model 87/89 to some extent.

Where the issue is harder to understand is when it comes to the militias and National Guard units. While it is known that several patterns existed for these as well, most seem to be fairly uniform and follow the same basic parameters of the Army style helmets. These were four seams, with a front/back and side seams. Now another helmet was found that turns all this on its axis! Continue reading →