Malaysia - Pahang 1899 4c on 8c dull purple and ultramarine error, SG25bMalaysia Pahang 1898 4c on Perak 8c dull purple and ultramarine, type 13 surcharge, error SURCHARGE DOUBLE, SG25b. A fine mint example with large part original gum. Typical traces of offsetting, but a really fine example for this issue. A rare stamp error. The Stanley Gibbons catalogue value is 1,000. Further information: 1. Why Pahang Used Perak Stamps At the time, Pahang was a British Protectorate, part of the Federated Malay States. Pahang didnt