Henry Simonis and Co
of Pretoria Works, Walthamstow, London E.
1908 Breathing apparatus
1911 Supplied the "Aerolith" liquid-air apparatus for life-saving in noxious atmospheres
1914 Brown, Hughes and Strachan built a prototype stretcher carrier, mounted on a chassis from Aberdonia, modified to carry the L.X.R. fittings of Simonis and Co.