Unsharpen

Pens and Pencils | Reviews and Data
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The Unsharpen Editorial Team handles writing and curation for Unsharpen.com. This includes writing most articles, writing pen, paper, etc. reviews, and building out the site's data catalog.

You can learn more about the team at the Youtube channel, as well as watch the catalog of over 500 video reviews and guides with over 10 million collective views, which will give you some insight into our pen expertise and our 20+ year history geeking out about pens, pencils, and paper.

Have a question? Reach out and a team member will get back to you.

Fountain Pen Cartridge Guide

In theory, using a fountain pen cartridges should be easy — you insert one into your pen and you start writing. In practice, they are rather confusing. Some cartridges only work on one brand of pen, some work on lots of pens… and they all look alike! Cartridges are rarely labeled well and the downside of messing up a cartridge installation can be a broken pen (bad) or a leaky cartridge (often worse).

This guide will answer most common fountain pen cartridge questions as well help you visually identify which cartridge is which.

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Paper and Notebook Sizes Explained

Moleskine Notebook

Paper and notebook sizes are an unfortunately confusing thing. You just want some printer paper or a new notebook, and instead you are choosing between “A4” and “B5” and a slew of other sizes that mean nothing to you. Maybe you are better off switching to numbers, like “8.5 by 11” but we’ve all made the mistake of ordering legal paper when we meant to get normal copy paper!

This guide should help you sort out all your loose leaf paper and notebook size problems.

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Vintage Pilot Murex and MYU Fountain Pens Untangled

Learning about vintage fountain pens is a difficult proposition as the history of pens and the companies behind them is poorly documented and information often comes from a single source when anything was bothered to be written down.

Anyway, some pens have a rich history that is worth digging into, like the Pilot Vanishing Point and, in this case, the Pilot MYU and Murex.

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