{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Practical masonry; a guide to the art of stone cutting, comprising the construction, setting-out, and working of stairs, circular work, arches, niches, domes, pendentives, vaults, tracery,etc","author_name":"William R. Purchase","thumbnail_url":"https://www.ebooknetworking.net/books/B00/7U0/bigB007U0ZNI2.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B007U0ZNI2.html\">Practical masonry; a guide to the art of stone cutting, comprising the construction, setting-out, and working of stairs, circular work, arches, niches, domes, pendentives, vaults, tracery,etc</a>","width":400,"height":300}