Russian, CC Seal, Image & Found by Paul Hewett.
Found in Essex, 22mm, 11.9g.
CC (ornate script), СЕСЕ(К?)ИНЪ around // 1, ПЕ(Г?)В... around
Sesekin ?
From Ged Dodd, "The interesting one isn't a flax or hemp seal .. the names are not on the database or anything similar .. I read CECEБИHЬ and ПEPB.... SESEBIN and PERV,,,,,,,"