Pen and Ink Series #60: Three Geometries, LA, 2025 Posted on March 16, 2025 by davisbrotherlylove Here are the substrates for three geometries: The sphere, the plane and the pseudosphere. Three Geometries, LA, 2025Pen and Ink Series #60Pen and Pencil Sketch© 2025 Jack Davis Share on Autism Nation (Opens in new window) Autism Nation TweetMoreShare on TumblrLike this:Like Loading…