Pi Beta Phi was founded as a secret organization under the name of I.C. Sorosis on April 28, 1867 at Monmouth College in Monmouth, Illinois. Pi Beta Phi is regarded as the first national women's fraternity. The founders were Clara Brownlee Hutchinson, Libbie Brook Gaddis, Emma Brownlee Kilgore, Margaret Campbell, Rosa Moore, Ada Bruen Grier, Nancy Black Wallace, Jennie Horne Turnbull, Jennie Nicol, Inez Smith Soule, Fannie Thomson, and Fannie Whitenack Libbey, and they created th...e society to enjoy the benefits of a secret society similar to those formed by collegiate men. They planned their society at a home where two of the women rented a room, choosing I.C. Sorosis as the name and "Pi Beta Phi" as the motto.Shortly after the founding, the sisters had a jeweler design their official badge: a golden arrow with the letters "I.C." on the wings. When the name was changed to "Pi Beta Phi," the Greek letters replaced "I.C." on the wings. At the Yellowstone Convention of 1934, they voted to limit the links in the badge's chain; there are 12, one for each of the founders.This pin is actually TWO pins - one is the main arrow with two large diamonds embedded on the shaft of the arrow and a third diamond suspended from a chain right underneath the shaft. The attached crest also has 1 small diamond on the body of the bird and the arrowhead has 3 additional diamonds, two of which are somewhat smaller than the third one. There is also an engraving that is sop small its difficult to discern even under a magnifier. It appears to say Clark G741 but it may be the year of 74. There are also three additional letters above this inscription, again, small and hard to decipher.This is an exquisite collectible pin for the right person. Stunning in both the craftsmanship and its design.