Subject: Article from Essex Countryside Watermills on the River Lea including drawing of Waltham Abbey water driven overhaed gunpowder incorporating mill from Muspratt's "Chemistry"
Description: The copper mill, Walthamstow, where early in the nineteenth century copper sheet was produced. The copper ingots came by water from South Wales and an unloading crane and a mooring ring can still be seen, though the days when large craft could be moored here are long since past.
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