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US ARMY SERVICE TROUSERS, MOUNTED PATTERN 1911 – MEXICAN PUNITIVE EXPEDITION UNIFORM ITEM:  One of the pieces of early Twentieth Century US Army uniforming commonly associated with the 1916 Mexican Punitive Expedition, this is a pair of 1911 Mounted Service Trousers.   

As described in William Machado’s description of the Pattern 1911 Service Uniform in his informative Uniforms and Equipment of the Last Campaign 1916, these Service Trousers with the reinforcing extra layer of cloth inside surface of the legs, were the common trousers issued during the Punitive Expedition.  Replacing the earlier mounted trouser pattern introduced earlier in the 1902 Uniform Regulations, the army decided the reinforced seat was no longer necessary in the 1911-1914 time frame and it was deleted from the specifications, retaining only the reinforcing extra layer of material on the inside of the legs.  

Manufactured of the same wool as the service coat, this pair of trousers has all five aluminum buttons on the fly, each embossed with the correct “ * U S A * “ logo.  The combination maker and Quartermaster Depot tag is sewn to the underside of the right front pocket liner, and although worn, the imprint of the Philadelphia Clothing Depot is still legible. 

There are two front pockets with a watch pocket over the right hand front pocket, two rear pockets, and all of the belt loops are present and intact.  

While this pair of trousers is a solid specimen, it does show evidence of issue and wear in the field.  The quality of the material is very good with no weak seams, open tears, mothing or faded or bleached areas.  There are five points of repair as seen in the photographs below – at the crotch, on the right thigh below the front pocket, the same location below the left pocket, and below the right rear pocket – that have all been well stitched over during the period of use.  All of these areas are typical wear points and the soldier did not allow them to enlarge or weaken the trousers, instead having them properly repaired to preserve the service life of his pants.  None of these repairs are particularly unsightly, well executed with the proper colored thread which blends in well with the material.  The rear seam on the back of the trousers has been reinforced with a piece of heavy canvas bias tape, again during the period of use, and it appears it was done to provide a bit more room in the seat rather than being a split seam as there is no damage to the edges of the material.  This seam is not weak and the reinforcement was very neatly done.  The eyelets on the leg gussets are all present and the lacing strings are full length and complete with the brass tips.   

This pair is a very respectable specimen, which will display well with a cavalry display focused on the era of the Punitive Expedition through World War One.   (0429)  $185

NOTE:  Photographing wool material presents some interesting challenges in lighting and contrast.  It results in a trade off between trying to maintain the accurate and consistent coloring between photographs and providing sufficient detail of specific features.  Any variations in the coloring you see in the photographs below is due to the limitations of the photography and is not due to fading, bleached areas, or discoloration of the material.



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