Briggs & Stratton Model 23A-FB Antique Engine . All original-1958 in mint condition other than a little minor paint chipping on front blower housing, excellent for 57 years old. Engine made for powering a Winco, Wincharger corp Generator (a subsidiary of zenith radio corp). 9 horsepower (at the time Briggs most powerful engine and the most powerful residential generator available at time) for 1958 its like the power of a 15 horsepower today. Starts on first pull and runs excellent. This generator is still relevant today and would be the best generator available all original cast iron quality american made. The generator was manufactured in August of 1958 in Sioux city Iowa, USA and just turned 57. This information has been verified by Winco. Video part 1 of 2.