The white over red panel vans were part of the EPDS Emergency Preparedness Disaster Service aka the Civil Defence. Up til 1989 the CFD had a squad of volunteer members who manned an old staiton and responded with auxillary appratus to elevated alarms. Later the EMS side took over the rigs and all the EMS side equipment is white over red.
[url="http://www.chicagofd.org/apparatusphotosepds.html"]http://www.chicagofd.org/apparatusphotosepds.html[/url]
[url="http://www.chicagofd.org/apparatusphotosepds.html"]http://www.chicagofd.org/apparatusphotosepds.html[/url]