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					Originally Posted by  chris vickery
					 
				 
				I came into aquisition of some M series type spark plugs that I do not recognize. My thoughts were that maybe they were aircraft, 151 or something other. 
They are a metal bodied waterproof type plug, finsihed in zinc dichromate (yellow anodizing) with the following markings: 
LEONARD R14 GSXK 
Any ideas? 
			
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 Chris..
Was in Acton over the weekend and thought of you..Those may be motor cycle spark plugs..Bombardier..maybe..??