The Escapist Green Waterman Preface is a delightful two tone green pen.
This L (Broad) nib looks like a stub italic from the top, it is rounded on the writing side and so very wet.
The typically very reserved looking Rohrer and Klingner bottle. A good design - mouth wide enough for the biggest nib and the bottle tall enough to allow their filling.
This Blau-Schwarz (blue-black) is a true limited edition - only 1000 bottles made, all hand numbered, mine is 968. The ink is definitely blue-black, with some shading from this broad wet nib.