Kentucky Bluegrass

PN100197

Vessel & Volume 50mL Glass Bottle

Regular price: $17
Regular price: ~~$17~~
Sale price: $17

Free shipping offer* $75+

Orders Ship From Pennsylvania

Part of the Keystone Formula fountain pen ink line, Kentucky Bluegrass is built with traditional dye-colorants. Our ink color swatch and writing sample are produced on Tomoe River paper with a cotton swab and medium point grade nib. The 50mL volume will provide approximately 62 standard converter refills assuming a 0.8mL draw. Glass bottles arrive prepared in our beautifully foiled Birmingham Pen Co. gift box.

Prepared In Pennsylvania

From The Maker

Skip the middleman and get the best experience by purchasing directly from a maker. As a tiny Pennsylvania based manufacturer, we're here to stand behind your purchase with expert guidance and support.
Packed With Care

Glass bottles are cartoned and individually wrapped in repurposable cellulose wadding for added cushioning and protection in transit. Meticulous care is applied to every package to ensure product arrives safely and ready to enjoy.
Ships From PA

All of our packages ship from Pennsylvania within 1-2 business days on average, unless otherwise prominently noted in the product description.
Free Freight Offer

Free shipping offer* active for orders $75+ within the continental USA.
A flat $9 shipping rate is available for all other orders continental U.S. with calculated rates for Alaska & Hawaii.
International shipping is not available.

A Chemistry Of Color

How It's Made

Our fountain pen ink formulas are developed in-house using fine colorant and a meticulously tuned vehicle. Every bottle reflects our commitment to performance, value, and creative exploration.

Formula Guide

We've compartmentalized our fountain pen ink recipes into four principal categories characterized by differentiating elements of the colorant component in the formula. A colorant is a dye or pigment that exhibits color. An ink vehicle is a series of chemicals used to transport colorant from storage reservoir to substrate (paper in our case).

Keystone Formula inks are engineered using water-soluble dyes to produce a broad spectrum of colors with a variety of unique and desirable writing properties. Fitting the bill for a traditional fountain pen ink, this series by far the most popular.

Delicate Formula inks are constructed with dyes selected for both performance and washability. Colors in this series will clean easily from most fabrics and surfaces with soap and water.

Everlasting Formula inks are compounded with pigmented colorants to produce highly water-resistant and archival properties on most papers.

Twinkle Formula inks are formulated using hybrid dye and pigment combinations to create a unique twinkling luster.

Sample Recipe

Quality In The Details

Our fountain pen ink formulas are developed in-house using fine colorant and a meticulously tuned vehicle. Every bottle reflects our commitment to performance, value, and creative exploration.