Leipzig? 1725. Single-sided engraving, octavo-sized (15.8 x 9.4 cm). Framed. Frame size 45.6 x 33.1 cm).

A nice portrait of the famous French scientist, naturalist and entomologist René-Antoine Ferchault de Réaumur (1683-1757), principally known for his groundbreaking work on insects, and the Réaumur thermometer scale. The artist is the German engraver Johann Martin Bernigeroth (1713-1767). Vague stamp in the lower left corner, otherwise very good, clean.