page_title: Spanish M1921
hierarchical_section_title: Spanish M1921
caption_attribution_description: English: Spanish M21 liner
context_page_description: The M1921 Helmet, is a steel combat helmet developed alongside the M1926 helmet in 1926 for use by the Spanish Army. The model never being formally adopted by the army in favor of the M1926. The exact reasoning for the designation "M1921" is not known as it was developed later.
context_section_description: The M1921 Helmet, (also known as the M21, along with “Sin Ala,” “Without Wing” for its vertical sides) is a steel combat helmet developed alongside the M1926 helmet in 1926 for use by the Spanish Army. The model never being formally adopted by the army in favor of the M1926. The exact reasoning for the designation "M1921" is not known as it was developed later.
caption: M21 Liner, later used by the M26 and M42 helmets.
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