A baseboard mounting, flat cased capacitor. Edison Bell's range of fixed capacitor covered 0.0001uF through to 0.004 uF and were rated at 500 volts.

Length 60mm and width 25mm (not including metal lugs).

Each capacitor included a test slip of paper with hand-written confirmation of the capacity and the person who calibrated it.

These capacitors were available throughout the 1920's through to the early 1930's.