This picture is of an Isophlebia aspasia (Hagen, 1866) dragon fly fossil. It existed during the late Jurassic period. The fossil was found in Eichstätt, Germany. Fossil was on display at the Natural History Museum Vienna (Naturhistorisches Museum Wien) on August 2024.
Learn more here: https://babel.hathitrust.org/cgi/pt?id=coo.31924018399224&seq=21&q1=Isophlebia+aspasia