@islandinthenet.com In the 1960’s payphones were still mostly rotary dial. That started changing in the late 60’s, first in the cities and more gradually in less metropolitan areas. Dial payphones lingered on in indoor locations protected from vandalism. Sometimes you would even see old wooden phonebooths in old hotel lobbies but they were becoming very rare.
I remember local payphone calls being a nickle and then being raised to a dime for a long while and then a quarter. I too, always tried to have a couple of coins in my pocket just for emergencies.