Montblanc Meisterstück 136 Fountain Pen
This 136 dates from the late 1940s to early 1950s. Its hard to date this one since it has the transitional cap rings. The clip and rings do have some brassing, but all in all really nice example of a pen about 70 years old.
It fills via telescopic Piston Filler. It has a Medium Oblique nib.