VG full leather. Paris, Imprimerie Royale, 1770-1785. Small 8vo Hardcovers. 18 volumes set, complete, speckled full leather, lovely, all edges marbled, marbled end-papers. Each volume has 12 or more lovely b/w plates of birds in natural environment, over 250 plates. One of the great and early bird books. Complete in 18 volumes. All books are tight, covers are clean, no markings inside, pages clean with very occasional foxing, one book has light stains to outer margins. Very lovely and important set. These spectacular engravings are from the most important and comprehensive late eighteenth-century French ornithological work produced. 

The first photo shows 17 volumes but there are actually 18; one book was accidentally left out.