I noticed that the caption under the photo of the sign on the Solo Cup factory explains that the phone number, PO-5-1313 is an old phone number for the company. It's actually the phone number for the police, pre-911. The number for the fire department was FI-7-1313.;)

http://forgottenchicago.com/features/chicago-infrastructure/south-shore-bo-spur/

http://www.dolanart.com

At the 1974 Auto Show, Ford was letting people do the car model sales pitch. My mom did a silly act and said 'This is the Ford... what's it called Torino....later call me at PO5-1313'.

for the PO5-1313 days to return. my interaction when I had occasion to call them in the '60s was totally different than modern-day 911. Reasons? let me count the ways