NEW YORK (AP).- A new clock — well, an old clock, really — has been installed on the lower level of Manhattan’s Grand Central Terminal. Metro-North Railroad spokeswoman Marjorie Anders says the clock was moved from the upper level because new lighting fixtures hid it from sight. The clock is from the Self Winding Clock Co. Nancy Dyer of the National Association of Watch and Clock Collectors says there once were more than 50,000 Self Winding clocks across the country, all maintained by Western Union. She says Western Union transmitted the correct time to the clocks, and they helped maintain railroad schedules. Anders says the clock, framed by a square oak case, was too big and beautiful to put in a museum. So it was moved to the ceiling of the dining concourse.