30 Kopecks agriculture exhibition \"pavilion Belorussian SSR\" with three line black typography overprint, overprint in type I the 2nd issue, position 29, mint never hinged, faultless condition - an in the expertise mentioned trace of crease is in our opinion a more internal, manufactured sheet crease, signed on the base Krischke BPP and Dr. Dub, expertise Thilo Nagler VP (2023), Michel 450.-