As you requested to "make a paper," here is a brief overview and historical context regarding this series and specific episode: : Czech Casting

In the mid-18th century, the Czech lands (then part of the Habsburg monarchy) were a hub of metallurgical innovation. The year 1760 marked a period when Bohemian foundries mastered the casting of bells, cannons, and Baroque statues. Unlike modern “casting” in the entertainment industry, historical casting referred to the pouring of molten metals—bronze, iron, or pewter—into carved molds.