title: Pen #2
artist: Guy T. Schafer
2-piece brass ballpoint pen.
Tapered flat side milled to prevent rolling.
Takes a Fisher Space Pen refill. Writes upside-down!
Single point internal and external threading at 0.5mm pitch
done with artist-made threading tools.
Given to a friend.
Tapered flat side for desk use prevents rolling.
Notches milled into sides before through hole was drilled.
Threaded at 51 tpi with threading tools made by eye.