Specification of John Sylvester
Subtitle: communicating heat to boilers
Publisher: Great Seal Patent Office; George E. Eyre and William Spottiswoode)
Published: 1857
Place of publication: London
Language: eng
Subjects: Steam-boilers
Notes: At head of title: A.D. 1835. No. 6789.

"John Sylvester, of Bloomsbury, in the county of Middlesex, engineer".