Sheffield, Derbyshire, England, United Kingdom
Hecla Works, Newhall Road. At Hecla Works Robert A Hadfield developed manganese steel, one of the first 'special' steels. Hadfields once employed 15,000 here and at East Hecla Works, Tinsley
Listen to the audio guide for Robert Hadfield blue plaque Free on WIP — starts by itself when you arrive, even with the screen off