Original Sketch Card from the 2019 Spaceship A Day series

All the original sketches from the Starshipwright One book. Drawn using gray marker and Pilot HiTec-C permanent ballpoint pens on acid-free 5"x7" or 4"x6" paper.

All the original sketches from the Starshipwright One book. Drawn using gray marker and Pilot HiTec-C permanent ballpoint pens on acid-free 5"x7" or 4"x6" paper.