Large Heinrici hot-air engine presented by Mr. Silberrad, Loughton, Essex Large Heinrici hot-air engine presented by Mr. Silberrad Heat Engines (non steam)
1878-1960, industrial chemist; scientist; explosives expert, British Silberrad, Oswald John 1878 - 1960
active about 1799-1833/4, manufacturer of scientific instruments, London, England Silberrad, Charles Unknown - 1834
Stoppered measuring cylinder on circular base with ground glass neck and stopper held in place with cord Experimental Chemistry