That's a revenue stamp from Austria. The border says "Kais. Koen. Oest. Stempelmarke", abbreviation for "Kaiserlich-Königlich Österreichische Stempelmarke". Which translates to "Imperial-Royal Austrian revenue stamp".
Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Stamp Community assumes no liability for errors. Copyright 2005 - 2026 Stamp Community Family - All rights reserved worldwide. Use of any images or content on this website without prior written permission of Stamp Community or the original lender is strictly prohibited. Privacy Policy / Terms of UseAdvertise Here