Specification for railway turnouts for private users
By: British Standards Institution. Part 1. Turnouts over which British Railways locomotives operate. Section 1.2, Turnouts using flat bottom rail.
Series: BS 4521. Part 1. Section 1.2. 1971
Publisher: B.S.I.
Published: 1971
Place of publication: London
Language: eng
Number of pages: 26
Subjects: Railroads -- Curves and turnouts.