This telephone directory for East Chicago, Indiana (with Indiana Harbor) was published in March 1941 by Rueben H. Donnelley, Chicago, for the Illinois Bell Telephone Company.
The head is set in Kabel (or possibly Monotype’s copy, Sans Serif). The humble star of the show is Bell Gothic. Designed specifically for AT&T to set telephone directories, Chauncey H. Griffith’s typeface was first issued by Mergenthaler Linotype in 1938. It’s here combined with Century Oldstyle. Index headlines appear to be in Cheltenham.