An Automatic Electric dial telephone dating back to the 1950s, still in occasional use at the Fenton Funeral Chapel in Centralia, Missouri (retrofitted with an older-style four-prong jack).

This phone can be no older than 1954, when Centralia converted to dial telephone service.

Thanks to Tom Fenton for showing me this phone and a newer three-line Automatic Electric phone, which are rare outside areas that had not been served by GTE.