Hello David,
For all my experience in researching old mines and old furnaces, it is
trough plug from a foundry operation.
Some foundries, especially older ones that didn't have overhead cranes
and large crucibles have channels in the floor from the furnace to a
bank(tree) of molds. The mol
Hello David,
For all my experience in researching old mines and old furnaces, it is
trough plug from a foundry operation.
Some foundries, especially older ones that didn't have overhead cranes
and large crucibles have channels in the floor from the furnace to a
bank(tree) of molds. The molte
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