Description Mark 28 Model O Binoculars. Made in 1943. In excellent condition. The leather straps on the binoculars and the leather in the case are both still present with only light cracking. This type of binoculars was fairly common, and produced in mass quantities by a number of different contractors. Aside from the binoculars, the case also held a 'Designation of Grade' for Lieutenant Commander William E. Scrimsher. The binoculars serial number: 159949