This Esterbrook ReNew replacement nib and feed unit is marked 2312, an Italic Medium nib made of stainless steel. Esterbrook ReNew nib units are interchangeable, and to change them, you simply unscrew one and screw in another one. The Esterbrook 2312 nib is very hard to find.
Didn't think I'd ever be able to acquire this rare Estie nib but the Andersons came through for me once again. It's a beautiful, smooth writer and I couldn't be happier to add this to my Estie collection.
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