This is a very crisp Onoto K in black with gold trim from around 1955. Unusually for De La Rue, this is a piston filler with a transparent ink view window in the barrel with a Parker 51 type hooded nib
This pen looks to be unused and has the remains of the original chalk marking on the side of the barrel. It is fitted with a fine 14k nib - 1955
Condition A2/1f
(Ref 12630)