Common Battery Wall Telephone

CD1140, "induction coil" pattern with permanent magnet receiver.

CD1140A, "Electromagnet" pattern with current polarised receiver.

FRAMEWORK, black enamelled steel.

MICRO-TELEPHONE. RE 4001, suspended on a hook-switch, with cord RS 6000.

CONDENSER, with a capacity of two microfarads.

RINGER. 1,000 ohms resistance.

The line terminals and a protector are enclosed in this telephone.

Overall dimensions
Height 8.66 inches
Width 8.25
Depth 3.65