Links to the Apparatus Manufacturer Logos and the Delivery Lists have been added back to the forums.
I found this ex-PFD Mack on FireMaster's old lot in Strafford, MO in 1978:
PN 5--2005 Dodge Caravan. Fire Prevention RS 4--1997 Ford ExplorerFM 15--2010 Ford Escape. Fire MarshalPA Southeast Regional Task Force--2009 Ford E-Series
What is RS 4?