I just picked this bike up at a swap meet over the weekend. The Mahowald head badge was from a hardware/ cycle shop out of Mankato Minnesota. I know that they were just rebadged bicycles from some other manufacturer but I can't figure out much on my own and could use some help. I'm particularly curious about the approximate age and possible manufacturer of this bike.
The bicycle did have some numbers on the bottom of the crank area. It looks like it reads, "5796A" or it could maybe be, "3796A". I couldn't see any other numbers.
Any help would be appreciated.