In 1930 during the 300th anniversary of the establishment of the Massachusetts Bay Colony in the New World a special commission was established to mark the occasion. As part of its work the commission located historic sites in the Commonwealth and marked them with large black and white cast iron signs. Dozens of the signs were cast and then mounted or supported with poles and placed throughout the state. Some 78 years have passed and many of the signs are gone, but there are still some of them out there to be found. Here are just a few I have run across.