The Extra 557/S was the largest model of the Extra line introduced in 1948. It is a large but very light pen, which can be used for long writing sessions without tiring the hand.

This Omas Extra 557/S is in excellent condition and it is fitted with a superb Omas Extra 14 ct nib which is a pleasure to use. The nib is smooth, responsive and can go from an EF line to almost B with  a very gentle pressure.