A friend asked me if I knew what these were.  He said he got them from a guy who said they were vintage 70's.  At first I thought they were old Snuffers, but some research indicates they are old "H" broadheads, which I've not heard of.  
Any one have a clue as to what these are, and if they are "H" broadheads, who made them and when?
Many thanks!
 (http://www.hunt101.com/data/500/medium/image1069.jpg)
			
			
			
				Hi- Precision  Made in Orange city Iowa, late 50s early 60s
			
			
			
				1961 High Precision