[Circular]
Subtitle: the improvements referred to in this circular are in use upon this railway, and considered valuable, and are worked under the following regulations ..
Series: CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches -- no. 90510
Publisher: s.n.
Published: 1991
Place of publication: [Hamilton, Ont.?
Language: eng
Format: Microform
Subjects: Railroads -- Equipment and supplies.; Signal lights.
Notes: At head of title: Great Western Railway.

Dated: Hamilton, Ontario, October, 1872.

Signed: Andrew Dick.

Filmed from a copy of the original publication held by the National Archives of Canada. Ottawa : Canadian Institute for Historical Microreproductions, 1991.

[3] p. : ill. ; 33 cm.