A push-button TouchTone phone from 1963. Note the missing * and # keys. They were not introduced until 1968.

November 18, 1963

Bell Telephone offers the first electronic push-button telephones to customers in Carnegie and Greensburg, Pennsylvania. Dual-tone multi-frequency (DTMF) technology (Touch-Tone) was also introduced on the same day in order to accommodate the new push-button telephones.