30 Kopecks special stamp "agriculture exhibition - pavilion the 3 central provinces" with black typography overprint "Laisvi Telsiai 1941. VI. 26" in type IIIb the 2nd issue, printing field 17 with overprint flaw XVI "194 i in lieu of 1941", mint never hinged, very fine, issued only 40 examples, photo expertize Tobias Huylmans BPP (2025) "genuine and immaculate", Michel 1.350.-