W74 is Tungsten

The W is for wolfram because Tungsten was found in wolframite and at one point was named Wolfram.  It was originally named Tungsten, which means heavy stone.  It has the highest boiling point of any element.  There are Tungsten lamps and tungsten carbide is used on tips of ball point pens.

The painting features graphite drawing and layers of transparent colored penciling, along with acrylic, on drawing paper.