John Falconer, British Library
A Biographical Dictionary of 19th Century Photographers in South and South-East Asia
Commercial, Singapore and Malaysia
The Danish-born Feilberg entered into partnership with August Sachtler with a studio in High Street, Singapore in July 1864; he then moved to Penang in partnership with Hermann Sachtler in the firm of Sachtler and Feilberg, Beach Street, Penang, 1865-7; thereafter he maintained an independent business in Beach Street. Published Views from Deli and the Batak Country (Medan, 1871). By 1879 his studio had transferred to Penang Road. By the late 1880s he had returned to Singapore, working as an assistant to George S. Michael and then as photographer with the Singapore Photographic Company from 1889-91. From about 1892 until he left Singapore in about 1901 he worked for Moses and Co. at the Standard Photographic Studio in Orchard Road. Feilberg exhibited views of Penang and Ceylon (Sri Lanka) at the Paris International Exhibition of 1867, and in about 1868 made a 10-part panoramic view of Penang from the tower in Light Street. The illustrations accompanying an article in The Illustrated London News (5 February 1870) about the Duke of Edinburgh's visit to Penang were based on photographs by Feilberg.
OUR BEAUTIFUL ISLAND. - A visit to Mr K. Feilberg’s studio in Beach Street [Penang] would amply repay a lover of the Fine Arts. There is there to be seen a panoramic view of the island of Penang consisting of ten photographs, beautifully and artistically executed by Mr Feilberg. They were taken from the tower of ‘folly’ as it is called, in Light Street, lately purchased by Mr Kaw Sin Tat. The views include the town from along the seashore from Fort Cornwallis as far as the Church of the Assumption, and what gives an additional interest to the pictures is the fact, that when they were being taken, the first P. and O. Steamer Malacca, was laying in the harbour, (under the renewed postal contract) and the Fort Flag Staff was gaily decorated with all national flags in honor of the event. It is to be hoped that Mr Feilberg will make a good thing of his views, and that he will receive no end of orders for them, which are pretty presents to distant friends and doubtless would be welcomed by them as souvenirs of the island ... 
- Λ Penang Argus, 8 Oct 1868.