public domain

<n>She Will Veiled Walk</n>, an 1908 illustration by <n>William Heath Robinson</n> for <n>Shakespeare's Twelfth Night</n>.

'<n>It Is My Party</n>' from <n>Kittens and Cats: A First Reader</n> (1911). Photo by <n>Harry Whittier Frees</n>.

<n>Queen Cat</n> from the 1911 book <n>Kittens and Cats: A First Reader</n>. Photo by <n>Harry Whittier Frees</n>.

A steel engraving of <n>The Gap of Dunloe</n> by artist <n>Thomas Creswick</n> and engraver <n>Robert Wallis</n>, c. 1875.

An illustration by <n>Alphonse de Neuville</n> for <n>Jules Verne</n>'s 1870 novel <n>Twenty Thousand Leagues Under the Seas</n>.

Art by <n>John Martin</n> based on <n>John Milton</n>'s poem <n>Paradise Lost</n>.

A photograph by <n>Harry Whittier Frees</n> from <n>Eulalie Osgood Grover</n>'s 1911 book, "<n>Kittens and Cats: A First Reader</n>".

<n>Handsome Pair</n> (1909), an illustration by <n>Cecil Aldin</n>.

<n>Until Her Death</n> (1895), an illustration by <n>Hugh Thomson</n> for a book by <n>Austin Dobson</n>.

An 1871 illustration by <n>Alphonse de Neuville</n> for <n>Jules Verne</n>'s <n>Twenty Thousand Leagues Under the Sea</n>.

The illustration <n>A secret</n> by <n>Cecil Aldin</n>, from his c. 1913 book <n>Cecil Aldin's merry party</n>.

‘Walking Couple by Moonlight’ by Gesina ter Borch (1654)

<n>The Mouse Trap</n>, a 1911 photograph by <n>Harry Whittier Frees</n> from the book <n>Kittens and Cats: A First Reader</n>.

<n>Give Me a Leg Up</n> by <n>Cecil Aldin</n> from the book <n>Cecil Aldin's merry party</n> (1913).