Description
One-way automatic door sign with 4 sides. The do-not-enter sides say "exit only" and "enter only," and the arrow sides say "in" and "out."
Links
*YouTube: www.youtube.com/channel/UCGib6…
*Archive: archive.org/details/@nick_saur…
*Art-3000: www.art-3000.com/artist/?id=12…