Stan Bogdan Model O Salmon Multiplier, very early model made by Stan Bogdan with original white handle knob and no model stated on the foot and the maker's plate on the front instead of back, 3 1/4" diameter and a 1.375 " spool width allows for a 9 wt line and 150 yards of 20 lb. backing. Right hand wind. 2 to 1 Multiplier. Mechanically perfect and excellent cosmetically. A very early model in the elusive O size.