Stuart transmission low oil pressure warning lights
			 
			 
			
		
		
		
			
			This is what I could find in the M5A1 manual TM9-727C from December 22, 1942. 
It seems that these are just warning lights, so not wired in the cranking motor circuit.
		 
		
		
		
			
		
		
		
		
		
		
			
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				Staghound F215633, 12th Troop "Sergeants Car" XII Manitoba Dragoons
			 
		
		
		
		
		
	
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