50 C. postal stamp "peace allegory" in the vertical pair with overprint in type I, correctly franked multiple franking on cover from "Ghyvelde 2. 8. 40" to Dunkerque with arrival postmark on the back from 3. 8. 40, photo expertize Lothar autumn VP (2016) : "the condition is perfect. The stamps are only in small number of pieces recorded, therefore are they rare. "