Kaiser of Germany (1859–1941) from 1888 to 1918. DS, in German, signed “Wilhelm R,” three pages on two adjoining sheets, 8.5 x 14, May 18, 1901. Untranslated patent document boldly signed at the conclusion in black ink by Wilhelm. In very good condition, with intersecting folds, one through a single letter of signature, some light feathering to signature, and uniform toning to pages. Pre-certified PSA/DNA and RRAuction COA.
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