Just picked up a couple of old broadheads that I don't have in my book.Stamped in the head is Caspearson Die Co. Madison Wis.It is a 2 blade with a spirel look.Any info would be appreciated.
Rick, Sounds like a Helix Spiral. Most available ones are common and from the late 40's or early 50's
Chuck nailed it. Larry Becker and Bob Casperson made the first Helix Spiral broadhead in 1946 in Madison, Wisconsin.
Here's a picture of the most common 1950 Helix Spiral, L 2.60", W 1.00"
(http://i698.photobucket.com/albums/vv341/bowhunterfrompast/Broadhead%20Collection/023-3.jpg) (http://s698.photobucket.com/user/bowhunterfrompast/media/Broadhead%20Collection/023-3.jpg.html)