Antique Sheaffer's #5 Self-Filling Black Ebonite Flexible

An incredible antique treasure, in rare condition for its age. This circa 1915 Sheaffer's fountain pen in chased black ebonite (also known as black chased hard rubber, or BCHR) is marked "5" on the barrel and on the nib. The delicate surface patterning was made by scratching into the hard rubber over and over again with an industrial black diamond.

This pen has a truly remarkable antique flexible nib, capable of line variation ranging from a fine .3mm to a 1+mm flexed width. The tip is shaped similarly to a concord nib, and gives a bold, brush-stroke like effect when the pen is used upside-down. 

This pre-owned fountain pen is in Excellent condition.

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Free nib set-up and optimization included.


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Unless otherwise requested, this pre-owned Antique Sheaffer's #5 Self-Filling Black Ebonite fountain pen will be fully tested and then tuned to your own personal writing preferences before shipping.

Our optional nib customizations are not recommended for a pen of this caliber and vintage.

Measurements & Specifications

Closed Length 5.4"
Posted Length 6.7"
Ink Capacity 1.2 ml
Filling System Lever
Cap Type Threaded
Clip With Clip
Postable Postable
Pen Weight 16.3 g
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