I came across this Mack awhile back that from a distance seems like a traditional R-Model but with each closing step reveals that appearances can be deceiving.
From the Town of Leyden, NY this truck looks like the rare optioned steel nosed R-model. I’m making that up of course. My best guess is that someone had a steel nosed DM and retrofitted a new tilt nose hood….for reasons unknown. Or maybe they had a R with parts left over from a DM? Alphabet soup!
While we’re on the topic of Macks, here is a DM for Kenyon Pipeline Inspection. The back of this truck is jammed full of equipment, compressors and generators. Nothing strange about the grill on this truck.