Two rods of glass with cross bar with ball one end and ebonite arm the other

Two rods of glass with cross bar with ball one end and ebonite arm the other, possibly Riviere, European, 1880-1920

Details

Category:
Therapeutics
Collection:
Sir Henry Wellcome's Museum Collection
Object Number:
A658651
Materials:
glass, brass and ebonite
type:
spark gaps