S 357, 1968 Pirsch.
This truck spent its life as Truck 9, first at E-21, then at E-9, 1617 U St NW. U St. had a bump at the end of the firehouse apron that could bounce a tillerman. T9 received a new piece in 1981. Sometime after, the old Pirsch came back as a reserve. While responding on a fire call the driver hit the bump at the end of the apron and the tractor broke in two! The turntable crashed through the wood canopy, but, thankfully, there were no injuries.
Note the Circle-D lights on the front fenders. All DC trucks had these as their "address lights", operated by toggles on the dashboard. They were held by quarter turn clamps and could be quickly removed and used.
Photo is 1976.
Kevin Byrne