"As I grew up a hop, skip and jump from the Canadian border and once held a job as a fishing guide on the Gunflint Trail, I love Canadian made tackle. You have a classic carded walleye spinner known as a June Bug because the blade was reminiscent of the nocturnal insect of the same name. Many companies manufactured June Bug spinners, as they were (and are) massively effective fish catchers. Dominion Fishing Tackle (later Owens-Dominion) was one of the popular Ontario makers from the 1920s to the 1960s, manufacturing a complete line of spinners from Fluted to June Bug, many of them marked "Dominion" or "D.F.T." I would guess yours dates from the late 1930s or early 1940s, and should be worth around $10 to a collector of Canadian tackle. To see a 1950s carded Dominion spinner, click here."