An important Samuel Colt double signed pig-skin covered book, entitled “INVENTOR’S GUIDE / PHILLIPS”, dated 1837. “The INVENTOR’S GUIDE. Comprising the Rules, forms, and proceedings, for securing PATENT RIGHTS” By Willard Phillip. Boston: S. Colman, 191 Washington Street, New York: Collins, Keese, & Co. 1837. With Sam’s signature on inside page and also on inside cover. Samuel Colt’s personal reference book on securing his Patents, in the early Paterson days. 7 ½ inches by 5 inches. Overall condition very good.