See the following link for a few period photos of how markings could be applied.  
http://www.questmasters.us/Restoration_Supplies.html
The 4 sections aerials reel looks to have been sprayed. 
 
There is also what’s called rocker mount stamps. Once the stamp is made, the application goes very fast.
		  
		
		
		
		
		
		
			
				__________________ 
				Jordan Baker 
RHLI Museum, 
Otter LRC 
C15A-Wire3, 1944 
Willys MB, 1942 
10cwt Canadian trailer
			 
		
		
		
		
		
	
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