Motorized Drott bicycle made by Lindblad in Stokholm in early 1920s.
Velociped AB Lindblad was a Swedish bicycle manufacturer and distributor. They built their own bicycles of the brands Blixt and Radix, and they sold bicycles of the brands Crescent and Drott as well as bicycle accessories. They also imported AJS and Harley-Davidson cars and motorcycles. The company was founded in 1896.