US Army, TUSLOG DET FOUR, Patch . Official and UNUSED Orginal. Located at Sinop, Turkey (interesting reading about this unit, way out in the middle of no where). Activited in 1967, bound edge, the color light blue is a twill with cheese cloth backing and recovered with plastic. Measures: 5 inches. Condition: very good - some of the thin plastic is cracking and peeling off, although not a lot.