Washington: R.O. Polkinhorn, Printer, 1877. 30, , [1 blank] pp. Original printed tan wrappers [some scoring, loosening, light chipping], stitched. Rear wrap has engraving of the U.S. Patent Office. Light staining to the outermost edges of text, else clean. Good+.
The inner front wrapper advertises the Washington firm of Mason, Fenwick & Lawrence, "Patent Agents and Attorneys." The firm's argument details the long history of this patent controversy, and the entitlement of Gordon's heirs to the patent.
OCLC 44009767 [2-NYPL, Newberry] [as of March 2013]. Item #29833