I like the OMAS 361 and its flexible\stiff nib. I have a very small collection of this model: a 361\S set FP + PNC in black celluloid body and gold filled cap, a 361\C black celluloid and gold filled cap and a black celluloid 361\T. They were produced in different years, but all about 1950's.
The main feature of 361's nib is the difference of flexibility - not of the size like in Sheaffer Stylist or in Parker 180 – turning over the pen.
Note in 180 difference of width and in 361 of stiffness
The nib is covered by an hood that on one side lets it quite open, so it can easily bend; on the opposite side the point only sticks out of the cover and it is very rigid. I have always seen a unique size of 361 nib, a fine\medium point, and always in gold.
The great flexibility makes it a wet nib too, while the stiff side is dry, so the difference of writing is evident.
The point is perfectly axial (just like in Stylist and 180) and when you rotate the pen you do not feel any change in the position of the nib.
The hood also is free to rotate and one could rotate it to modify the flexibility of writing, but I prefer to turn the pen because the celluloid of the hood is thin and breakable (anyway in the instruction papers of 361 I do not find any reference to the rotation of the hood).
Unfortunately OMAS 361 is a pen not so easy to find and very rare in unused mint conditions.
Edited by gicoteni, 20 January 2008 - 15:15.