Kharkiv. 1918, 22 stamps with black overprint (type 1), including perforated 3k in strip of five, pair of 10k/7k and 15 imperforated stamps of 1k in strip of five and block of ten, used on registered cover from Korenevo to Sudzha, all appropriate markings and arrival ds, VF, ex- Dr. Seichter (Image)