"The Pen Type-A is wonderful. The design is exquisite – everything feels perfect down to the micrometer. The experience of the pen leaving and being replaced into the ruler/chamber is delightful. The weight of the pen when writing is perfect. Impossible to make it better? Thank you!"

- Tim F. (USA)

"The Pen Type-A is wonderful. The design is exquisite – everything feels perfect down to the micrometer. The experience of the pen leaving and being replaced into the ruler/chamber is delightful. The weight of the pen when writing is perfect. Impossible to make it better? Thank you!"

- Tim F. (USA)

A balance of simplicity, precision and substance since 2012.

Pen Type-A is manufactured with quality and care at a multi-generation machine shop in Vermont, USA.

In 2023, it was added to the Cooper Hewitt National Design Museum's permanent collection.

Machined from stainless steel, Pen Type-A® comes in 4 variants.

The Classic variant has an engraved imperial + metric ruler and is available in a glass bead stainless finish or with a black cerakote.

The Architect scale version features either an imperial or metric architect scale.

Pen Type-A® is available with a custom laser engraving. Available in a black cerakote, a ceramic polymer coating. Even though this coating is durable, over time it will wear and reveal the stainless steel underneath, giving it kind of a rugged feel.

Also available with a custom laser engraving.

The deep wells in the cylinders and the square sleeves are painstakingly drilled out from a solid block with a gun drill. This machine uses high pressure oil pumped to the cutting edge of a specialized bit to slowly drill out a perfectly straight and deep well.

The clean and smooth cylindrical pen slides neatly into its sleeve, held in by a magnet once in its final position.

You’ll note a slight popping sound when removing it from its sheath—the effect of high tolerances creating a pneumatic seal, much like a piston.

There is no visible branding on the surface of Pen Type-A®. However, hidden under the coin screw is our tiny CW&T inscription. (Just in case you or your grandkids want to figure out where it came from.) Shown here on the sleeve is an example of a custom engraving you can add to your order.

Special Edition Pen Type-A with laser etched architect's scales on all four sides

IMPERIAL architect's scale has the following scales marked

1"=1'	1/2"=1'
3/4"=1'	3/8"=1'
1/4"=1'	1/8"=1'
3/16"=1'	3/32"=1'

METRIC architect's scale has the following scales marked

1:1	1:20
1:25	1:50
1:75	1:100
1:125	1:200

MADE IN THE USA

Pen Type-A® is machined using high precision tools at a manufacturing facility in Vermont.

The stepped geometry of the tip leaves the contact point exposed, so you can see what you are drawing. It is perfect for architects, illustrators, and designers. Inside the ruler sleeve is a stepped area keeping the super fine tip gently rested against a silicone pad.

- Pen Diameter: 9.8mm
- Pen Length: 125mm
- Sleeve Weight: 74 grams (2.6 oz)
- Sleeve Length: 120mm
- Sleeve Width: 12mm
- Weight: 50 grams (1.75 oz)
- Material: 300 and 400 series Stainless Steel

Each pen includes a Black Pilot Hi-Tec-C 0.3mm ink cartridge. They are available in 4 line widths and over 30 colors here.

There are also a bunch of other ink cartridges that are compatible with Pen Type-A®.

To replace the ink cartridge, simply unscrew the back of the pen with a coin.

Studio Sketchbook

Pen Type-A ®

Pen Type-A ®

Pen Type-B

Pen Type-B

Pen Type-B

Pen Type-B

Pen Type-B

Pen Type-B

Pen Type-B Case

Pen Type-C

Pen Type-C

Pen Type-C

Pen Type-C

Pen Type-C

Pen Type-C

Pencil Type-C