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Title: Ore-furnace regulus after the third roasting, "2-feuriger Ro [Go to resource]
Description: Ore-furnace regulus after the third roasting, "2-feuriger Rohstein," Sangershausen License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1889-164/697 Go to resource More Like this...
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