This 1956 promotional video is a time capsule of New Jersey when my parents were kids.

"This Technicolor color film was produced in 1956 for the New Jersey Bell Telephone Company, and based on a 1953 John T. Cunningham book This is New Jersey."

It’s surprisingly light on corporate propaganda. However, the mention that one third of the state was below the Mason-Dixon Line was a little too… wistful, especially given the paucity of people of color in the film.
 https://youtu.be/pF6TPvxs95w