Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 140,776 pages of information and 227,393 images on early companies, their products and the people who designed and built them.
See J. Seal for possible connection
c.1904 Building a small inverted four-cycle paraffin marine engine rated 2.5 hp at 760 rpm. Production continued until c1913
1910 Inverted-cylinder paraffin engine.