Vintage Rafaelian American Flag Brooch

This is a 1970s-era Rafaelian brand American flag gold-tone rhinestone brooch, in excellent used condition with minor wear on the back of the bottom of the flag pole. Brooch is gold toned with red, blue and clear rhinestones forming the American flag. Please see photos for measurements. Rafaelian hallmark. I believe this brooch was made for the United States Bicentennial in 1976, which was the 200th anniversary of the adoption of the Declaration of Independence by the Founding Father delegates of the Second Continental Congress, but I'm unable to verify that. I don't know much else about this brooch other than it was purchased by my grandma and found prior to her estate sale. Questions? Please ask prior to purchase.