The complete set in detail

RDB01
Sc.No. OL16
1905 - Official stamp for Baden : Diagonal inscription 'Frei durch Ablösung Nr. 16' - grey ; 2 Pfg.

RDB02
Sc.No. OL17
1905 - Official stamp for Baden : Diagonal inscription 'Frei durch Ablösung Nr. 16' - bistre ; 3 Pfg.

RDB03
Sc.No. OL18
1905 - Official stamp for Baden : Diagonal inscription 'Frei durch Ablösung Nr. 16' - green ; 5 Pfg.

RDB04
Sc.No. OL19
1905 - Official stamp for Baden : Diagonal inscription 'Frei durch Ablösung Nr. 16' - carmine-red ; 10 Pfg.

RDB05
Sc.No. OL20
1905 - Official stamp for Baden : Diagonal inscription 'Frei durch Ablösung Nr. 16' - ultramarine ; 20 Pfg.

RDB06
Sc.No. OL21
1905 - Official stamp for Baden : Diagonal inscription 'Frei durch Ablösung Nr. 16' - red and black / yellow ; 25 Pfg.