Postage due is a term used for mail sent with insufficient postage. Postage Due stamp is a stamp added to an underpaid piece of mail to indicate the extra postage due.
Federated Malay State issued a set Postage Due stamps on 01 Dec1924. It features the value in Numerals.
Federated Malay States (FMS) was a Federation of four protected states in the Malay Peninsula -Selangor, Perak, Negeri Sembilan & Pahang- established by the British Government in 1895and which lasted till 1946.