The complete set in detail
FGU15
Sc.No. N28
1940 - President von Hindenburg : Overprint black "Elsaß" - black-green-blue ; 4 Pfg.
FGU26
Sc.No. N39
1940 - President von Hindenburg : Overprint black "Elsaß" - green and black ; 50 Pfg.
FGU28
Sc.No. N41
1940 - President von Hindenburg : Overprint black "Elsaß" - blue and black ; 80 Pfg.
FGU29
Sc.No. N42
1940 - President von Hindenburg : Overprint black "Elsaß" - yellow and black ; 100 Pfg.