of 16 Ashwin Street, Dalston, London E8
c.1850 Company founded[1] by Edward Tyer
1938 Electrical and mechanical railway signal engineers [2]
1953 Makers of railway signalling equipment and automatic train control apparatus (under licence from a Swiss company)
1953 Acquired by Southern Areas Electric Corporation[3] which had space and machines at other factories that would overcome the limit on production because of the size of the Dalston site[4].
1956 Modernization work anticipated for British Transport Commission.
Jan 2015 Images: Tablet/Token machines in use 2015 at Galoya Jnc. and Kalawewa Stations, Sri Lanka. Lever frame at Kalawewa.