Ballet dancer Isadore Duncan, 1915

Ballet dancer Isadore Duncan, 1915

Photographer: Arnold Genthe, USA

Marianne Wynniatt

Marianne Wynniatt

(photogravure 1929)

Photographer: Herbert Lambert, England

Edinburgh Castle, from the Vennel, c.1870

Edinburgh Castle, from the Vennel, c.1870

Photographer: G.W. Wilson, Aberdeen

Crown prince Leopold of Belgium (left), using a sextant on a boat (1920s)

Crown prince Leopold of Belgium (left), using a sextant on a boat (1920s)

Photographer unknown

Opera baritone Francisco d'Andrade as Mozart's Don Giovanni (1896)

Opera baritone Francisco d'Andrade as Mozart's Don Giovanni (1896)

Photographer: J.C. Schaarwächter, Berlin

Textile machine, 1950s

Textile machine, 1950s

Photographer: Martien Coppens, the Netherlands