My first sign to add to my collection - got it off ebay for $12. Not sure of how old this phone is, but I imagine from the 80s? Would this be where you could drive up to a payphone and use it without getting out of your car?
I remember those signs. There was a pay phone near me that had one of those, and I remember trying to use it - I couldn't get close enough to the phone to hit the key pad, so I had to get out of the car anyway to dial the number. Nice sign!
Carry that with you in your car, and if you ever get stopped for talking on your cell phone while driving, you can hold it up to the cop and act like the sign gives you permission to use the cell phone while driving......
You may wind up also having to try to explain that to the judge. ;D