For sale are these circa 1929 Psi Omega 14k Gold Fraternity pins from New York University. The larger pin measures almost 5/8" x almost 1/2" and with the Beta chapter pin weighs a total of 4.3 grams. As you can see, the larger pin is perfect with shimmering,fiery opals. The chapter pin is missing 3 opals. Great piece of 85 year old history!