Specification of Humphry Jeffreys
Subtitle: flue or chimney for furnaces, &c
Publisher: Great Seal Patent Office; George E. Eyre and William Spottiswoode)
Published: 1855
Place of publication: London
Language: eng
Subjects: Furnaces; Flues; Chimneys; Smoke prevention
Notes: At head of title: A.D. 1824. No. 5007.

"Humphry Jeffreys, of the city of Bristol, merchant".