This is an International/Divco unit. The photo was also submitted by Mars. He says this body and chassis were very popular throughout the country as door-to-door milk delivery trucks in the 1950s and 1960s. "This one has Washington state license plates and appears to be sitting in a field, abandoned," Mars says. "The last time I saw one of these still in service as a school bus was in Tennessee in the early 1970s."