Massachusetts Woman Suffrage Assoc. Tin Blue Bird Hanger, 1915So, this is a very special thing, which I've been pretty excited to learn about, including to find out that it is quite the rare collector's item. This terrific tin sign was issued by the Massachusetts Woman Suffrage Association to support a 1915 state referendum to give Massachusetts women the vote. On July 19, 1915, Suffrage Blue Bird Day, approximately 100,000 of these tin birds were pinned up around the state (I really love envisioning that giant