Portrait of Louis Kuhne (frontispiece, Die neue Heilwissenschaft)

Wikimedia Commons file record for the frontispiece portrait of Louis Kuhne reproduced in his book Die neue Heilwissenschaft. The Commons record states the rights as 'Public domain' (LicenseShortName and UsageTerms both 'Public domain'), gives the author as unknown, and credits the source as the Internet Archive scan dieneueheilwiss00kuhngoog (a 1908 German printing). The record names the subject (Louis Kuhne) and the source book, which is the basis for the caption's identification. Source for the actor-role media entity kuhne-portrait. The image derives from a book scan rather than from one of the four named structured archives' catalogue records; the Commons file is the holding record and its public-domain posture is read directly from that record. A dated search on 2026-06-12 of the four supported structured archives found no separate institutional portrait record (Wellcome holds Kuhne's books but no portrait; the Library of Congress and BnF/Gallica returned none), so this Wikimedia Commons frontispiece, which credits the Internet Archive book scan dieneueheilwiss00kuhngoog, is treated as the holding record per the project's accepted-residual convention.