The Truelove flag, dating back to 1873, is to be conserved as part of the major Hull Maritime project.The 147 year-old flag hung from the north wall of the old Pickering Park Museum and was on open display on the ground floor of the Hull Maritime Museum for four decades. Last month, the rare 15ft wide flag of the Hull whaler Truelove mounted on the wall on the ground floor was lowered and moved to…