On November 7, 2011 I covered one of these which had a Buy it Now of $25,000. This one has a starting no reserve bid of $17,000 on eBay.
The American Picker boys brought my attention to the engine which can be attached to anything you want to add motorized power. The idea has merit but I can see lawsuits coming faster than this flyer in today’s world.
“1919 BRIGGS & STRATTON FLYER – excellent condition, took a “First Prize – a “Junior” at Hershey, 1966. The slats have been replaced with new ash ones and the wheels were rebuilt to accept modern tires. All other items are original but restored.”