Oligocene Period, circa 45 million years B.P. A piece of Baltic amber containing insects together with other inclusions; held in a clear plastic tray. 3 grams, 28 mm (12 grams total, 40 x 40 mm including tray) (1 1/4 in. (1 1/2 x 1 1/2 in.)). Baltic region. Acquired 1930-1960. Collection of palaeontologist R. Gledhill. [No Reserve]