An Imperial Chinese junk flag captured during the First China War 1839-42. It is part of a collection belonging to Sir Robert Oliver (1783-1848), Superintendent of the Indian Navy. The hand sewn flag is made of silk with a cotton hoist. It is a triangular shape in light blue with a darker blue hoist and red indented border. There is a four toed silver and gold dragon and pearl motif in centre surrounded by clouds with lightning flashes in the borders.

Robert Oliver became Superintendent of the Indian Navy in 1837, a post he would hold until his death on 5 August 1848. The Indian Navy was the naval arm of the Honourable East India Company. It provided steamers that played a crucial role in naval operations during the First China War as were able to penetrate the interior of the country along its rivers.