Scale model of a massive toroidal steel casting produced by United Engineering & Foundry Company (later Mesta Machine) out of New Castle Pennsylvania circa 1946.. Our best guess is that this casting was destined to become part of a steel mill.
Other items in photos shown for size comparison - Not included.
model is for display and operating model railroad load / modelling and
is not a child's toy.
For use by railroad modelers age 14 years minimum.