{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A Treatise On Optical Drawing Instruments. Also a Method of Preserving Pictures in Oil and in Water Colours","author_name":"Cornelius Varley","thumbnail_url":"https://www.ebooknetworking.net/books/114/569/big1145698131.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1145698131.html\">A Treatise On Optical Drawing Instruments. Also a Method of Preserving Pictures in Oil and in Water Colours</a>","width":400,"height":300}