English naturalist and author (1809–1882) whose book explaining his theories of evolution, On the Origin of the Species by Means of Natural Selection (1859), takes a place among the most influential texts in the history of scientific thought. Crisp and bold ink signature, “Charles Darwin,” on an off-white 3.25 x 2 card. In fine condition, with light pencil notation under signature, a couple trivial bends and a slight spot of toning under first name of signature. An attractive and visually appealing example. Pre-certified John Reznikoff/PSA/DNA and RRAuction COA.