{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"How to Make a Form Tool Grinding Attachment for the Watchmakers' Lathe: For Making Gear Cutters and The Like","author_name":"Robert D. Porter","thumbnail_url":"https://www.ebooknetworking.net/books/B00/8BI/bigB008BIS4SS.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B008BIS4SS.html\">How to Make a Form Tool Grinding Attachment for the Watchmakers&#039; Lathe: For Making Gear Cutters and The Like</a>","width":400,"height":300}