What is this??

[mnicholet (Mark Nicholet, License # 357191)]

Does anyone know what this is? 1950’s era. Thanks!

[Brian_A.MacNeish]

Outdoor phone jack

[jrider (Jason Rider)]

Yep, phone jack.

[jmurray4 (Jay C. Murray)]

Old phone jack. Like in Grandma’s house from 1956.