The text mentions troff and PIC. I wonder whether the author still has the source code... Even if re-rendering with modern tools ("modern" meaning "actually run

The text mentions troff and PIC. I wonder whether the author still has the source code... Even if re-rendering with modern tools ("modern" meaning "actually runs on platforms readily available today, e.g. groff and gpic") is more work than he’s willing to put in (which I quite understand), there ought to be someone on the Internet who is enough of a compsci/typography nerd to do it...