The SVG version of Manfred Spiller's Lisp logo. The original site only provided raster versions.
"Anyone may use these logos freely for any purpose and in any way. Attribution of the logos to their creator is not necessary but will be appreciated." — Manfred Spiller
While the original site doesn't specify a formal license, based on the above statement, I believe the most appropriate license would be CC0 (Creative Commons Zero).
Special thanks to my friend Raga Punggawa, a talented graphic designer, for helping create the SVG version of the logo.
- JSCL logo by Michał Herda.