Vintage Staedtler Marsmatic 700 Technical 14 Drawing Pens

This is a mixed lot of pens.  One full complete set, one that is miss the red, and additional green (colors are not the color of the ink, it is a pen identifier).

Most look like they've never been used.  There are four that have been used.  I took photos of the two most heavily used pens.

Ink is included, however, there isn't much left in the containers.