Samuel Bollinger



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.[1]. See photo. Ruston was probably Joseph John Ruston.
See Albert Gieseler's website for list of known steam engines.