{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"British Railway Signalling: Survey of Fifty Years' Progress","author_name":"O. S. Nock","thumbnail_url":"https://www.ebooknetworking.net/books/004/625/big0046250026.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0046250026.html\">British Railway Signalling: Survey of Fifty Years&#039; Progress</a>","width":400,"height":300}