Composite newspaper locator: Sunday Sun duelling references, 1891–1892

London periodical, folio. Thimm cites issues dated 24 May and 21 June 1891 and 6 November 1892.

Quality phase 101o year decision [serial_or_article]: serial aggregate spanning volumes or an article citation whose issue year is not supplied; exact publication year intentionally left unset.

Quality phase 434: specialist references confirm London coverage, but this aggregate spans multiple years; no single publication year or exact extent is assigned.

Quality phase 483: classified as a periodical component, composite locator, index pointer or museum-object reference rather than a separately described manifestation.