A painted tinplate steam roller with forward and reverse action, finished in blue with red lining, possibly by Bing, circa 1930 (parts missing), 9in. long; a German clockwork lithographed tinplate steam roller; a Bing pulley operated trip hammer, circa 1920's; a Hess dynamo and lineshaft; a Bing steam plant, 1920's (parts missing); a Bing pulley driven windmill, 1920's (two sails missing); an electric motor; another horizontal boiler steam plant (worn, parts missing) and a Bing vertical boiler steam engine on cast iron base with sight glass, whistle, adjustable safety valve and cast iron burner door, circa 1912 (worn, parts missing)_