The "champion" automatic fog horn
Subtitle: Smith & Booth's patent, supplied by the "Neptune" Fog Horn Company Limited.
Publisher: [s.n.]
Published: 1987
Place of publication: Quebec
Language: eng
Format: Microform
Number of pages: 11
Subjects: "Neptune" Fog Horn Company.; Aids to navigation.; Navigation -- Equipment and supplies.
Notes: "Patented in Canada, Aug. 31st 1876 ..."

Filmed from a copy of the original publication held by the Department of Rare Books and Special Collections, McGill University, Montreal. Ottawa : Canadian Institute for Historical Microreproductions, 1987.

10p. ; 23 cm.