Book
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Title
3 1/4 inch and 4 inch triple mirror signalling apparatus -- 3 1/4 inch and 4 inch triple mirror signaling apparatus
Authors
Subjects
Language
English
Published
[Place of publication not identified] : [Carl Zeiss Jena?], [1910?]
Publication Desc
22 pages, 5 leaves of plates : illustrations, plans ;
Series
Reference number T. 93
Dimensions
18 cm