Confirmed via Google Play Books as Lettre sur le duel by Francois Charles Joseph Grandgagnage, Liege, Imprimerie de Jeunehomme freres, 1836, 23 pages. The local record already preserved the short title and year; this closure normalizes the full personal authority and the Belgian imprint.
Quality phase 177: Jeunehomme frères is structured as printer, following the explicit title-page statement Imprimerie de Jeunehomme frères.
Cover retrieved from the official Google Books cover endpoint for volume N3FNAAAAcAAJ in phase 635; validated at 300×467 pixels.
Quality phase 670: cover filename extension normalized from .jpg to .png after binary MIME inspection; image bytes and visual content are unchanged.
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Bibliographic page linking Grandgagnage to a memoir on legislation concerning the duel in 1836.
