Special Bird Series 1983-1984 Each set has 2 types, 5 sets in total. Alpine Plant Series 1984-1986 Each set has 2 types, 7 sets in total. Both are old Showa-era stamps. Would you like them for your collection? Some stamps have very faint postmarks or stains. These are offered to those who understand amateur water removal. They will be removed from the album and sent with water damage protection.