Z:gnu-www-ja-copyleft-sticker--f63204-The =26ldquo;Copyleft (L) sticke/en

The &ldquo;Copyleft (L) sticker&rdquo;, the Front of the envelope with the &ldquo;Copyleft (L)&rdquo; sticker, and the Back of the envelope with the &ldquo;Copyleft (L)&rdquo; sticker, mailed from Don Hopkins to Richard Stallman in 1984 by Don Hopkins is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.