30 Kopecks agriculture exhibition \"pavilion Kazakh SSR\" with three line typography overprint in type IIIb, printing field 4 with overprint flaw XIII \"1 in lieu of L in Telsiai\", unused, faultless condition, expertized Krischke BPP, Dr. Dub and expertise Thilo Nagler VP (2023) \"genuine and immaculate\", Michel 720.-