[Original Patent Application No. 370,011 Accomplished in Manuscript] "To all to whom these presents shall come...a petition praying for the grant of Letters Patent for an alleged new and useful improvement in [Heating and Ventilating Prisons or other Buildings...]
Washington: H. Peters, 1887. Folio (30.5cm.); ribbon-bound engraved self-wrappers, wax-sealed and accomplished in manuscript; [8]ll. of photo-engraved plans printed on versos only, followed by [3]pp. text printed in double columns on rectos only. Previous mail folds, extremities a bit chipped and toned, ribbons slightly frayed, else Very Good, internally clean..... More
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