Bulbaria flag round badge illustration https://www.rawpixel.com/image/15555515/bulbaria-flag-round-badge-illustrationView licenseBulgaria travel, stamp tourism collage illustration https://www.rawpixel.com/image/11914490/bulgaria-travel-stamp-tourism-collage-illustrationView licenseBulgaria travel, stamp tourism collage illustration https://www.rawpixel.com/image/11905529/bulgaria-travel-stamp-tourism-collage-illustrationView licenseRusso-Turkish War: wounded Russian soldiers being brought back to the rear at the siege of Plevna. Wood engraving by… https://www.rawpixel.com/image/13984228/image-paper-horse-cartoonFree Image from public domain licenseSerbo-Bulgarian War: the Russian General Dragomirov being treated for his wounds. Wood engraving. https://www.rawpixel.com/image/13995713/image-cartoon-person-artFree Image from public domain licensePlovdiv (Philippopolis), Bulgaria: the hanging of Bulgarians by Turks. Wood engraving after C.R., 1876. https://www.rawpixel.com/image/14014603/image-cartoon-person-artFree Image from public domain licenseRusso-Turkish War: field hospital and ambulances waiting for the wounded. Wood engraving, 1877. https://www.rawpixel.com/image/13995926/image-paper-horse-cartoonFree Image from public domain license