ID: 
2603
Maker's Name: 
Union Carbide Corporation N.Y., N.Y. 10017
Where made: 
USA
c. 1950
Dimensions: 
2.5 × 1.5 × 3.5 cm

15 V battery of ten carbon-zinc cells with a low current output of only a few mA.

Used in AVO multimeters for the measurement of high resistances. Eyelets ar each end serve as contacts.