50 Kopecks control mark with dark purple red typography overprint "GK. Ssarny" type VII on small letter piece, position 9, cancelled by cancellation adjusted cancel "BERESCHNIZA POB. Obl. BERESCHNIZA -6 11 41", sound, expertized Keiler BPP and Rijxman, photo expertize Robert Brunel VP (2025) "the condition is perfect", Michel 320.-