Foundry casting Pattern.
One of a number we have and great wall art.
British, 20th Century.
An impeller is a rotating component of a centrifugal pump which transfers energy from the motor that drives the pump to the fluid being pumped by accelerating the fluid outwards from the center of rotation.
H:40 W:40 D:10 CM
H:15.9 W:15.9 D:4 INCHES