Antique black L.M. Ericsson hand crank telephone. Signs of wear and age, please see images. Cradle springs back, a little stiffly. Crank turns. Untested otherwise. Handset is marked TELEFONAKTIEBOLAGET L.M. ERICSSON STOCKHOLM SWEDEN. Wall cord is connected to a small metal black box, which I've included images of.
About 12" wide at the handset, 12" tall, 6" deep.
I'm not an antique phone expert, but please feel free to ask questions.