{"ref":null,"ref_type":"repository","master_branch":"master","description":"The Boot and Shoe Manufacturers' Assistant and Guide. Containing a Brief History of the Trade. History of India-rubber and Gutta-percha, And Their Application to the Manufacture of Boots and Shoes. Full Instructions in the Art, With Diagrams and Scales, Etc., Etc. Vulcanization and Sulphurization, English and American Patents. With an Elaborate Treatise on Tanning. by Various is a Project Gutenberg book, now on Github.","pusher_type":"user"}
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