logos

1924–19??

Original STIPEL logo

STIPEL - Società Telefonica Interregionale Piemontese e Lombarda (Interregional Telephone Company Piedmont and Lombardy) was born STEP - Società Telefonica Piemontese.

19??–1956

STIPEL logo 1956

1956–1959

STIPEL logo 1956-59

1959–1964

STIPEL logo 1959

In 1964 gets absorbed by SIP.