The vulture is an etching realized by F. Hubert in 1771. The artwork Belongs to the suite "Natural, general and particular history with the of the king's office". Paris: Royal Imprimerie, 1749-1771. The Artist's Signature is Engraved Lower Right. Good conditions. This piece is attributed to the mentioned designer/maker. It has no attribution mark and no official proof of authenticity, however it is well documented in design history. I take full responsibility for any authenticity issues arising from misattribution