5 Mk numeral of value in the oval, with English circle date stamp type V "HELIGOLAND . . 8 1890" on piece. The stamp is in the upper area slightly glue stained, they fastened original, in of the upper row of teeth is the third tooth shorter. The stationery with hinge traces. Multiple signed, amongst other things Buehler BPP. Issue 10. 000 piece, Michel 1. 500.