"You have a great classic bait that does not get the respect it deserves in fishing history. It's a Shannon Twin Spinner invented by Jesse Parker Shannon in 1915 and improved upon by his son, Jesse Max Shannon, both of Lake Geneva, Wisconsin. It is the predecessor of all modern spinner baits. Originally sold by Shannon, the rights to the bait were taken over around 1917 by the William Jamison Co. and it became a legendary bait in its time. Very few tackle boxes from the 1920-1950 era did not have at least one Shannon spinner in it. As a result, they are very common and are worth around $5-$10 in decent condition. However, they are still killer baits and can be used to catch everything from crappie to pike. To see a write up of the Shannon Twin Spinner from a 1917 Outing Magazine and a 1919 ad from The American Angler, click here."