This striking Austrian stamp from 1919 features the profile of Mercury, the Roman god of trade and communication, symbolizing speed and efficiency — ideals central to the postal service. Designed by W. Dachauer, it forms part of the first definitive series of the post-imperial Republic of Austria. Printed in a deep red-orange shade and imperforate, it bears the denomination of 75 Heller. These “Mercury” issues are among Austria’s most iconic post-WWI designs, widely admired for their classical engraving style and intricate Art Nouveau border.