Postcard below showing Koh-i-noor was on sale on Ebay recently (I was outbid, curses). Shows her alongside the Prince of Wales pier in 1911. A millionaire's yacht can be seen on the right of the photo and the small railway station built for the German transatlantic liners can be seen at the end of the POW.
"Koh-i-noor was a sumptuous ship, boasting a promenade deck that ran for some 300 ft from stem to stern and dining facilities for 200 passengers at one sitting. Other facilities included electrical lighting throughout, a post office, a hairdresser's, two bathrooms, as well as a book stall and fruit stall. At the time she was the largest and fastest paddler on the Thames and was built at a cost of £50,000. On her trials she achieved 19.5 knots and was known as the "Jewel of the Thames". Initially running from Old Swan Pier to Southend and Clacton, Koh-i-noor was later transferred to the Tilbury - Margate service where she became known as the one of the "Husband's Boats", along with Southend Belle. This title refers to the men from Essex and Kent who worked in London during the week and, finishing at mid day on Saturday, would catch a "Husband's Boat" to take them home to their families. Koh-i-noor was due to have new boilers fitted just before the outbreak of the Great War, but in the event this did not happen and after sailing back to her builders for the work to be done, she was laid up for the duration and never again entered service, being cut up at Morecambe in 1919."
http://freespace.virgin.net/tom.lee/kohinoorimg.htm
Several photos of her in Dover from the Bob Hollingsbee and Dover Museum collections with the legend "The time of taking must be during the early 1900s as the Admiralty Harbour breakwater is still under construction.The Koh-i-noor called there about four times a week between 3pm and 4pm once the Prince of Wales Pier was opened in 1903 and continued to do so till 1914 on a route that ran Tilbury-Southend-Margate-Ramsgate-Deal-Dover and back."
http://website.lineone.net/~tom_lee/kohinoor2.htm