• Robin&
1 1

Fountain Pen Ink

Robin's Egg

PN100767

$25
$19
$25
Free shipping offer* $75+

Note: You can opt-out at any time. See our Privacy Policy and Terms.

Orders Ship From Pennsylvania

Robin's Egg is part of the Delicate Formula fountain pen ink line, best for sensitive vintage pens* and easily washable from most surfaces with soap and water. The 100mL volume will provide approximately 125 standard converter refills assuming a 0.8mL draw. 

Enjoy Robin's Egg as a standalone fountain pen ink, or blend it with other Birmingham Pen Co. fountain pen inks to craft your personalized shade. Label illustrated by Ilham Afrora at Illousa Sajaklamo studio. 


*Please ensure the integrity of any vintage pen ink system prior to usage. Our Delicate Formula ink is built with gentle & washable colorant, yet we cannot assume responsibility for any damage that may occur in a compromised fountain pen.

Robin&

Technician Log
Ornate Birmingham Pen Company Logo

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

+ 2 parts Airline

+ 1 part Yorkshire Canary

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.
Fountain pen ink on sale

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.