{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Planispheric Astrolabe","author_name":"National Maritime Museum Staff of the Department of Navigation and Astronomy","thumbnail_url":"https://www.ebooknetworking.net/books/B00/15G/bigB0015G7RYU.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0015G7RYU.html\">The Planispheric Astrolabe</a>","width":400,"height":300}