16 O.D. Top Sub with 6-5/8 Regular (with 8 O.D. by 24 Lo

16 O.D. Top Sub with 6-5/8 Regular (with 8 O.D. by 24 Long Fishing Neck) Box Top Connection and with 10 Long Shoulder on Pin end of Top Sub. (68029)f/ Logan Series 150 Overshot.