This 15 Heller stamp from Deutschösterreich (German Austria), 1919 belongs to the first definitive series issued after the fall of the Austro-Hungarian Empire. Printed in brown, it features an elaborate stylized posthorn within an ornamental design by J. F. Renner, symbolizing Austria’s renewed postal authority in the early Republic era. The inscription “Deutschösterreich” reflects the country’s transitional name after World War I. These early issues are highly collectible for their historic context, striking Art Nouveau style, and variations in paper, perforation, and shade. A significant piece for collectors focusing on post-WWI Austria.