It's a cast-iron in a stove hole.
A ring of iron is a flat ring with a circular cap, if you look at the front. The large diameter of the excavation is equipped with a phat. On the other side, the circle has a series of cones from the rest of the circle of elevation at the center hole. The diameter of this elevation is the phasca, and the base of the cone is a neon grove. The circle is relatively thin. It was laid in the opening of the heating plate, in front of the other superimposed large ones.
Creation time: XX век
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