Some new traffic signals being installed at the intersection of Presidential Boulevard and City Avenue on 6-28-1974. The signals are Eagle flatbacks on Poles Inc mast-arms, very typical for PA at this time. The signals in this photo may be still in service. Also during the same time the bridge was built, to be made accessible to pedestrians. Image Curtsey of Temple University digital archives
Keystone State Traffic Signals 
I love these old photos. I’m learning alot from this site. 👍👍🚦🚦
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