Cohering plates. Two thick brass discs about eight centimetres wide, one slightly larger than the other, with handles.

ABDNP:200323a

Brass cohering rings with handles. Smaller base solid brass. Larger base has solid centre 75 mm with rounded additional rim. Two plates accurately finished so that when wrung together they would cohere due to natural interatomic boding between plates and exclusion of air.

1780-1822

brass
base diameter: smaller 75 mm; larger 82 mm; height (each) 90 mm

Physical Object