My brother was both a Draftsman and an Artist, and bought these Koh-I-Noor Rapidograph pens and ink cartridges from an Aaron's Brothers Art store in California about 3 years ago right after he retired for use in his post-retirement art projects.

He had used company-provided Rapidograph pens for several years during his drafting career, and was sold on how good of quality they were.

Unfortunately, health issues arose and he was barely able to use a couple of these items before he was unable to do any further art projects.

As the pictures show, the 7-pen set with ink (Model 3165-sp-7) was never used, and only a couple of the ink cartridges were used in another separate pen he bought.

All together I believe he spent just short of $190 for everything that you see at that time, so my asking price of $10.00 is a very small percentage of that and a VERY good value for these top-of-the-line drawing products.

If interested, please call or text Randy @ 801--830-7556.