Please note that the clasp is not working. There might be a piece missing that closes the loop. The product is a rare vintage gold tone pin representing a Nassau County New York Police Detective. This collectible item serves as a unique piece of historical memorabilia, showcasing the organization's insignia. Made in the United States, this pin is a special keepsake for collectors or individuals interested in police-related memorabilia. I believe DAI is District Attorney Investigator. (please send me a note if I am wrong.)  found this in my grandfather‘s belongings and it does have scratches on the front. A little bit of the gold plate is worn off on the back