I know nothing about fountain pens but I can give all the information that this one has on it.On The barrell it states, "Pat'd 1884, May 23, 1899 Waterman's Ideal Fountain Pen, N.Y., USA & Aug 4, 1903." The filler stem says "Ideal" on it. The word "Ideal" is inside a globe. On the base of the pen is the number "52 1/2 V". It does appear to have had red paint inside the number. The nib has the words "Waterman's Ideal New York." A previous owner left teeth marks on the base of the pen. I don't believe that the pen is able to hold ink. The filler stem only raises about 1/8th of an inch. The pen is black. It has an eyelet on the cap of the pen. Apparently this is used to fasten the pen to a garment. Thanks for looking at my offer. I appreciate your time. Good luck in your hunt for just the right item. Please look at my other offerings, as you may find something of interest.