D&RGW K-36, a 3-ft (914 mm) narrow gauge, Mikado type, 2-8-2 steam locomotives
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"Or che il dover – Tali e cotanti sono", K. 36, a concert aria in D major for tenor and orchestra by Wolfgang Amadeus Mozart
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K-36 trailer, a telephone pole hauling trailer used by the U.S. Army during and after World War II