G. R. Speaker and Co
[[Image::Im19080205BJ-Speak.jpg|thumb| February 1908.]]


of Eternit House, Stevenage Road, London, S.W.6.
1914 Advert Speakers Eternit Tiles, Contractors and Engineers, Mincing Lane, E.C.
1937 Eternit asbestos cement and Eonit pumice blocks.[1]