Model "A" Wheat Lamp

This is a Wheat Type “A” electric cap lamp manufactured by the Koehler Manufacturing Company of Marlborough, Massachusetts in 1917. Grant Wheat designed an electric cap lamp (often called the Wheat lamp) that was manufactured by the Koehler Manufacturing Company, who has continued to manufacture Wheat brand lamps into the 21st century. The Wheat lamp consists of a battery encased in a locking metal case worn on the miner’s belt. A flexible cord traveled to the cap lamp, which would be worn on the miner’s helmet. This lamp belonged to Grant Wheat’s personal collection that was donated to the museum in 1962.
Currently not on view
battery: 7 13/16 in x 5 3/8 in x 2 1/2 in; 19.812 cm x 13.716 cm x 6.35 cm
wire: 37 1/2 in; 95.25 cm
light: 3 1/2 in x 3 1/2 in x 4 5/16 in; 8.89 cm x 8.89 cm x 10.922 cm
ID Number
accession number
catalog number
Credit Line
Mary R. Wheat
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Work and Industry: Mining
Industry & Manufacturing
Grant Wheat Collection
Mining Lamps
Data Source
National Museum of American History


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