North Borneo SGD50 Postage Due 1902 BRITISH PROTECTORATE 2c opt at top perf 16

North Borneo SGD50 Postage Due. 1902-12 BRITISH PROTECTORATE 2c black and green horizontal opt at top perf 16 fine used with Sandakan cds dated 23 OCT 1907. Purchased from Stanley Gibbons (still on their card)