This is a really beautiful complete set of Bulgaria stamps from 1981 featuring medicinal plants! The collection includes catalogue numbers 2963 through 2968, so you're getting the full issue in one purchase. What makes these particularly special is that they're unmounted mint and never hinged (MNH), which means they're in pristine collector condition with full original gum. The medicinal plants theme is both educational and visually appealing, featuring detailed illustrations of various plants used in traditional medicine. As part of the PROPHILA COLLECTION, these stamps come with a quality guarantee from one of the most respected names in philately. The condition is exactly what serious collectors look for - no hinges, no damage, perfect centering, and bright, fresh colors. This 1981 issue represents an interesting period in Bulgarian philately and the medicinal plants theme has enduring appeal among both thematic and country collectors. The stamps have been properly stored and maintained to preserve their mint condition. Whether you're a Bulgaria specialist, thematic collector focusing on plants or medicine, or just appreciate beautiful stamp artwork, this complete set is a valuable addition to any collection. The PROPHILA guarantee means you can trust the quality and authenticity, which is so important when building a valuable stamp collection. This set represents exactly the kind of quality material that holds its value and appeal over time. A fantastic find for any stamp enthusiast looking to add a complete, high-quality set to their collection!