The Spencers manufactured files in the early eighteenth century. According to a company history (Spencer Clark, 1978), the key individual was Matthias Spencer I (1723-1796), who was a file smith in Pea Croft. In 1749, he had been granted a trade mark of a crescent and the letter ‘Z’. His two sons, John Spencer I (1754-1809) and Matthias Spencer II (1760-1823), eventually joined him and the file manufacturer Matthias Spencer & Sons was formed. The Pea Croft business prospered. ....