Letters of Patent for an Improved Folding Stereoscope Viewer. 1870
$2,000 · Offered by Between the Covers
Washington: Patent Office, 1870. Softcover. Partically printed document. Two bifolia stitched together with ribbon and secured with a paper seal. Old horizontal fold, small tears in the margins, very faint dampstain on the last two blank pages, very good or better. A letter of patent awarded to Edwin K. Page..... More
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