official not approved Soviet Russian postal stationery with oblique overprint "LUGA", pasted over with Pleskau Michel number 10 y and additional franking with Pleskau Michel number 9, over franked registered postcard, cancelled by cancel "PCKOB * K * -2 3 42" and "PCKOB * a * -2 3 42", sound, expertized Krischke, photo expertize Robert Brunel VP (2025), "the condition is perfect