This was sketched with Quink Black ink, a Pilot Parallel calligraphy fountain pen on its side, and a waterbrush to do the washes. This paper is a little rough for a steel calligraphy nib, so I did the writing on the top of the page with a marker. You can click the image to enlarge it, if you'd like a closer look.
The Quink ink washes into a subtle blue-gray and the tiniest hint of raw sienna color. It's quite nice.