30 Kopecks special stamp "agriculture exhibition - pavilion Kazakh SSR" with black typography overprint "Laisvi Telsiai 1941. VI. 26" in type IIIb the 2nd issue, overprint flaw XIX "i in lieu of I in Telsiai", mint never hinged, very fine, issued only 360 examples, expertized Krischke BPP, photo expertize Tobias Huylmans BPP ", Michel 1.350.-