Specification of Andrew Robertson and Alexander Ritchie
Subtitle: steam boiler and other furnaces, &c
Contributors: Ritchie, Alexander
Publisher: Great Seal Patent Office
Published: 1860
Place of publication: London
Language: eng
Subjects: Smoke prevention; Furnaces; Steam-boilers
Notes: Cover title.

At head of title: A.D. 1860, 17th May. No. 1218.

"Andrew Robertson, of Neilston, in the county of Renfrew, bleacher and Alexander Ritchie, of Glasgow, in the county of Lanark, accountant."