WW1 US AEF Officer’s Garrison Cap Size 7

The WW1 US AEF Officer’s Garrison Cap, Size 7, is a standard-issue headgear worn by commissioned officers of the American Expeditionary Forces during the First World War. This cap features a side-folding construction in olive drab wool, characteristic of U.S. military uniforms of the period. Designed for convenience and compact storage, the garrison cap became common among officers for both field and garrison use. Distinct details include the presence of a narrow crown with flat sides, polished cotton lining, and reinforced seams. Officer versions typically included piping or edging to denote rank, although variations existed based on supply and regulation changes throughout the war. The interior often bears a manufacturer’s stamp or size mark, with this example labeled as size 7. Such caps represented a shift from the more structured service caps issued earlier in the conflict and remained in service into the early 1920s. This item reflects standard wartime issue for U.S. officers serving overseas.