I need historical 4-hourly quotes data on Gold & Silver (XAU/USD & XAG/USD) for last 5 years. you can research through web to find a service & sell it to me. I do not care how you get these data as long as they are accurate & from a reliable source. I will check & double check the data you provide with some of my own to check its accuracy. Project will be finished until the accuracy of data is verified.