NORTH ADAMS — If anyone is missing a large, golden key to the city of Worcester, North Adams police have it.It's unclear how the key ended up more than two hours from the Massachusetts city it belongs to. North Adams police reported finding the key March 5 in a Facebook post seeking its owner.The key was found in a case emblazoned with the name of Mayor Andrew Holmstrom, who served the city of Worcester from 1950 to 1953.