20 pa. in B4 "Ελληνική Κατοχή Μυτιλήνης" with overprint "tete-beche" on 1908-1909 Turkish stamps (p.21-22/31-32). One stamp with error inverted "ι" on "Μυτιλήνης" (p.21). VF (Hellas 4+4B - Est. 170€)