Quality phase 101o year decision [source_undated]: consulted source supplies no defensible manifestation year; exact publication year intentionally left unset.
Exact institutional catalogue record reviewed in phase 274.
Phase 638 cover audit: the official BnF Catalogue cover API was queried for this exact ARK and returned no available image.
Cover audit phase 719: reviewed in the complete frozen 821-candidate pass. Disposition=catalogue_or_finding_aid. Bibliographic catalogue/finding-aid record; useful for identity, but not itself an edition image source. External probe: HTTP 503; content type text/html; charset=iso-8859-1.
Cover audit phase 740: final outcome=no_image_catalogue_only; bibliographic catalogue or finding-aid record; retained for authority control, but it does not expose a reusable manifestation image.
