Collection Manuscript/Mixed Material Image 1 of Item 22. Letter from the Syahbandar of Riau to Colonal Farquhar. Resident of Singapore. 3 Safar 1236 (10 November 1820). Item 22. Letter from the Syahbandar of Riau to Colonal Farquhar. Resident of Singapore. 3 Safar 1236 (10 November 1820).