Our Tenth National Convention in 1910 (Ithaca, NY) was a big event for us symbol-wise. That convention standardized the form of our badge, after a decade of a variety of styles. It added gold to red and black as an official color. It adopted the design of our shingle, which is still in use. And it adopted our coat of arms and our flag.
As a little background, it's worth remembering that in 1910, our name was Sinfonia Fraternity (formally, Sinfonia Fraternity of America). We were founded with that name in 1898, but the Greek letters ΦΜΑ were in use at the latest by April 1902. Some forms of our badge included the Greek letters, while others just had the Old English S. In 1908, the Constitution was amended to include the Greek letters, but the name was not legally changed until 1947.
This is our coat of arms:
As you can see, the design from the center of the badge is the centerpiece of the design. The arms appear on the shingle adopted in 1910 (this one is blank, lacking the name and chapter of the member, the chapter president's signature and the seal):
The arms also appear on the official flag:
(Not a great picture; the yellow should be gold and the red should be a little darker, but it shows what the flag looks like.) The flag is usually seen in the form of a banner that hangs from the top and has gold fringe on the bottom and sides. If on a pole, there is no fringe.
A variant of the coat of arms has been seen over the years (although it seems more rare these days), that includes the words "Phi Mu Alpha" on top, but this alternate design has never had official sanction:
[ETA: Readers may notice that other aspects of this design look different, including the jewels on the badge. In
this post down thread, I explain the restoration of the original form of the coat of arms in late 2011.)]
One particular design predates the coat of arms. The Second Convention (1902) adopted this design for chapter charters:
It was in use until sometime in the 1930s. Look carefully and you'll see the letters ΦΜΑ on the small seal that hangs from the book. You can also see the harp and pan pipes that would later appear on the coat of arms. In recent years, the store at our national HQ has offered a number of items, including tee shirts, that incorporate this old logo. I have a computer mousepad with this design on it.
I couldn't find a picture of our seal. It dates from the early 1900s, and is simple in design. It is circular with the words "SINFONIA FRATERNITY OF AMERICA" around the circumference. The letters ΦΜΑ are in the center. Above the letters is "FOUNDED 1898," and below them is "INCORPORATED 1904." Originally, the seal said "FOUNDED 1901," perhaps because that was the year of our first National Convention. When that seal broke and had to be replaced, it was replaced with one that (correctly) noted the founding year as 1898.
Enough for now, I guess.