The Hart-Parr/Oliver Collectors Assn.’s annual Summer Show, celebrating 100 years of Cletrac, was held during the New York Steam Engine Assn.’s 56th annual Pageant of Steam, Aug. 10-13, in Canandaigua, New York. The event was said to be the largest showing of Cletrac and Oliver crawlers ever. I counted more than 300 pieces of Oliver-related exhibits, ranging from ...