Round ebonite feed, grooves face and shank. The piston fills the tank in one stroke.All rings tied on the cap. Please have a look at the pics, which are part of the description. The item "Vintage 1950s MONTBLANC 146 Fountain Pen 14C 585 Gold Nib M" is in sale since Thursday, January 9, 2020. This item is in the category "Collectibles\Pens & Writing Instruments\Pens\Fountain Pens\Montblanc". The seller is "abay_2002" and is located in Altenkrempe. This item can be shipped worldwide.