The earliest and latest Minneapolis Threshing Machine Co. engines known to exist. The 1893 14 hp return-flue Minneapolis steam traction engine (at left, serial no. 721) and the latest — manufactured MTMC steam traction engine remaining, the 1924 20 hp Minneapolis engine (serial no. 8701). Just seven more were built after this one but none are known to exist.
Photo courtesy Jerred Ruble