Collection of various Bats from A history of the earth and animated nature (1820) by Oliver Goldsmith (1730-1774). Digitally… Free Image from public domain license 
Collection of various bats from A history of the earth and animated nature (1820) by Oliver Goldsmith (1730-1774). Digitally… Free Image from public domain license 
Bat (Roufsette) illustrated by Charles Dessalines D' Orbigny (1806-1876). Digitally enhanced from our own 1892 edition of… Free Image from public domain license 
Calaveras Oaxaquena by Mexican political printmaker and engraver, Jose Guadalupe Posada (1852-1913). Original from Library of… Free Image from public domain license