1920

1920 Danish-German edition
25. January WM: 4 Sheetsize: 100 Design: August Carstens Perforation: 14 x 14½

https://forumupload.ru/uploads/001c/37/7e/2/t436521.jpg

1920 Danish-German edition
25. January WM: 4 Sheetsize: 50 Design: August Carstens Perforation: 14 x 14½

https://forumupload.ru/uploads/001c/37/7e/2/t472703.jpg

1920 Overprinted "1.ZONE"
1. May WM: 4 Sheetsize: 100 Design: August Carstens Perforation: 14 x 14½

https://forumupload.ru/uploads/001c/37/7e/2/t333524.jpg

1920 Overprinted "1.ZONE"
1. May WM: 4 Sheetsize: 50 Design: August Carstens Perforation: 14 x 14½

https://forumupload.ru/uploads/001c/37/7e/2/t184372.jpg