Here is a vintage Grieder Flyer disc wheel tricycle built in the 1940s in Bowling green Ohio. The seat is missing and only 1 pedal. The back wheels do not match. I found this at an estate sale.
I do not have any more information on this tricycle. This item is in the category "Toys & Hobbies\Outdoor Toys & Structures\Ride-Ons & Tricycles\Pre-1970". The seller is "daduco74" and is located in this country: US. This item can be shipped to United States.