DescriptionFitzroy Iron Works - Bosh skull fragment with coal inclusions (Jan. 2020).jpg
English: Piece of iron, probably a fragment of a 'bosh skull', at the site of the former blast furnace of the Fitzroy Iron Works. This is one of four at this site. Included within the iron are large pieces of largely unaltered coal. This is almost certainly a result of unsuccessful attempts to smelt iron using local coal,
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