Slopes, Shafts and Planes - the Mechanics of Anthracite Mining
Автор: West Pittston Historical Society
Загружено: 2026-02-14
Просмотров: 59
Описание: This presentation took place on February 13, 2026 and was sponsored by the West Pittston (PA) Historical Society. The presenter was mining engineer, Justin Emershaw.
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