Pair of framed 18th Century French Engravings "Le Petit Maki Gris " and "L'Indri" Original Hand Colored Engravings from "Histoire Naturelle Générale et Particulière" Georges Louis Le Clerc de Buffon 1799 Classical carved wood and gold leaf reproduction 18th Century frames. Frame Dimensions - 11" x 13" each Condition - Frames are in very good condition with a few knocks to the sides (see photos). The Histoire Naturelle, générale et particulière is an encyclopaedic collection of 36 large volumes written between 1749–1804 by the Comte de Buffon.