30 Kopecks special stamp "agriculture exhibition - pavilion Kazakh SSR" with black typography overprint "Laisvi Telsiai 1941. VI. 26" in type IIIb the 2nd issue, upper margin copy, mint never hinged, faultless condition, issued only 360 examples, unsigned, photo expertize Thilo Nagler VP "genuine and immaculate", Michel 450.-