Quick view Burr Patterson Phi Delta Theta Badge - 14k Gold Opals Diamonds Antique Fraternity Shield Pin Fraternity Founded in 1848 Stamps: Burr Patterson makers mark Metal Content: 14k Yellow Gold (tested) Stone: Opals & Diamonds Material: Enamel Measurements: 27/32" (21.4mm) tall, 7/16"... MSRP: $549.99 Add to Wish List