Here’s a terrific photograph from the collection of the Miracle of America Museum in Polson, Montana. The photo shows what looks to be a 50 HP Fairbanks-Morse Type YV 2-stroke diesel of the type made in the mid-1920s. The truck carrying it is a GMC from that period. The truck looks awfully tired, but the Fairbanks diesel appears to be brand new and ready for work. You can find the Miracle of America Museum online.