Keystone Spring and Metal Works
Subtitle: K.W. Blackwell, manufacturer of spiral and elliptic springs, for railway cars and locomotives ..
Publisher: s.n.
Published: 1986
Place of publication: [Philadelphia?
Language: eng
Format: Microform
Number of pages: 35
Subjects: Keystone Spring and Metal Works -- Catalogs.; Railroad cars -- Springs and suspension.; Locomotives -- Springs and suspension.
Notes: Half title.

Dated: Montreal, September, 1883.

Filmed from a copy of the original publication held by the Library of the Public Archives of Canada. Ottawa: Canadian Institute for Historical Microreproductions, 1986.

59, [3] p. : ill. ; 15 cm.