Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 138,146 pages of information and 223,038 images on early companies, their products and the people who designed and built them.
Samuel Bollinger & Co and Samuel Bollinger & Schulz of Vienna
Engineers and machine makers.
Vienna Technical Museum has a remarkable 13 ft long working model steam dredger, the "Bollinger-Bagger", built in 1839 for Vienna’s Polytechnical Institute, built to plans by W. M. Pirswei and J. I. Ruston.. See photo. Ruston was probably Joseph John Ruston.
See Albert Gieseler's website for list of known steam engines.