Biff Bait Company Musky Spiral Lure.  About 5" long excluding hook (spiral 3" long).  From the Biff Bait Company in Milwaukee, Wisconsin.  3-17-25 patent date stamped on it.  Has some wear but still in overall good condition, see photos.  So tough to find in the larger sizes.  Tough Wisconsin Muskie bait to find.  Add this one to your collection while you can.

This lure will make a great addition to your collection.  Be sure to check out our other tough and rare antique lures at My Bait Shop's Vault, the place to find our tougher collectible lures for sale.