|Mark 1 lateral L||314|
|Mark 2||R.ESTERBROOK & Co|
|Mark 4||MADE IN U.S.A.|
AAAndrew's Steel Pen blog says that the #314 Relief nib "was so popular that when Esterbrook first started experimenting with fountain pens (made by Wirt, De La Rue, and eventually Conway Stewart), out of all of the nibs they made, they chose the 314 Relief to be the nib."
Described in contemporary advertising (1938 Esterbrook Catalog) as: "Relief - Flexible, medium stub. For social correspondence and manuscript writing. Brass finish. Gold plated." This nib was included in both the 1883 and 1938 Esterbrook Catalogs. Other contemporary advertising (see eBay) says the #314 "is an extraordinary pen that adjusts itself to any desired slant and writes smoother than the old goose quill/ Made of special alloyed metal--won't corrode--and finished like a gold pen."
The Esterbrook Project describes this nib as a straight-bodied pen with a stub tip and no vent hole. Brass finish. ... This is another pen that probably qualifies as "Flagship" status for the Esterbrook Company. In production for a long time and widely advertised ... Esterbrook advertising indicates that this pen was not made of steel. Probably made of brass.
There are no additional versions of the Esterbrook #314 Relief Pen in the Chappy's Nibs collection, as pictured below (brass-finish).
Click any image for a full-resolution photo: 1650 x 480. The image with the ruler is 2300 x 1196.