Specification of John Clay
Subtitle: apparatus for consuming smoke in furnaces, &c
Publisher: Queen's Printing Office
Published: 1854
Place of publication: London
Language: eng
Subjects: Furnaces; Smoke prevention
Notes: Cover title.

At head of title: A.D. 1845. No. 10,491.

"John Clay, of Edgely, Cheshire, corn dealer."