He helped the Wright Brothers with the wind tunnel testing of their first gliders, and was later tasked with building the engine that would power the first airplane. An extraordinary craftsman, Taylor hand-built the unique custom engine that propelled the Wright Flyer to success at Kitty Hawk. The First Flight could not have succeeded without him. A check written one year after the historic First Flight, payable to C. E. Taylor. Written entirely by Orville Wright, who signed the check "Wright Cycle Co., o.w." Endorsed with Taylor's signature on the reverse "C. E. Taylor." A great piece of aviation history signed by both the first pilot and the man who built the first airplane engine. Checks (of any sort) on the Wrights' Cycle Company account are very scarce.