Illustrated catalogue of the Royal Photographic Society's international exhibition at the Crystal Palace, 1898 (1898)
Royal Photographic Society International Exhibition (1898 : Crystal Palace, London, England), Royal Photographic Society of Great Britain · London : Royal Photographic Society · leaf 326
Iviii ADVERTISEMENTS. … LOCKYER’S Hydroquinone Developer and other Preparations. See Stand 45.
Royal Photographic Society of Great Britain · Photography, Artistic
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
