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Patent
U.S.A. letters patent issued to Charles Horace Watkins re. sparking plugs. Patent number '1263719', dated 23rd April 1918. Contains a diagram with two page description bound with blue tape with red paper seal bottom left.
Collection Area
Industry
Item Number
1998.1/38
Acquisition
Donation, 5/1/1998
Measurements
folded
(mm): 306
folded
(mm): 104
Material
paper
Location
In store
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