~ How to Telephone; The Home Telephone Directory, August 1, 1910 (San Francisco, CA.)via Internet Archive"Remove the receiver from the hook. Place the finger in the dial hole opposite the letter prefix of the number wanted, pull the dial down…"

~ How to Telephone; The Home Telephone Directory, August 1, 1910 (San Francisco, CA.)
via Internet Archive

"Remove the receiver from the hook. Place the finger in the dial hole opposite the letter prefix of the number wanted, pull the dial down…"