{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Appendix To Swineford's History Of The Lake Superior Iron District: Being A Review Of Its Mines And Furnaces For 1872 (1872)","author_name":"Alfred P. Swineford","thumbnail_url":"https://www.ebooknetworking.net/books/110/438/big1104380145.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1104380145.html\">Appendix To Swineford&#039;s History Of The Lake Superior Iron District: Being A Review Of Its Mines And Furnaces For 1872 (1872)</a>","width":400,"height":300}