Ericsson Wall Telephone. Material: wood, metal, textile. Size: 6 1/2" W. x 18" L. x 6" D. Description: (a) brown finished hardwood back designed to mount on wall; metal components: (b) mouthpiece at top, side-by-side bell cups, (c ) receiver mounted on left side, hand crank on right side, internal mechanism, name plate: " L. M. Ericsoon & Co., Patent Stockholm"; hinged wooden lid beneath mouthpiece provides notetaking area and covers internal mechanism.