DescriptionSemaphore (PSF).png Line art of a railway semaphore. Source Archives of Pearson Scott Foresman, donated to the Wikimedia Foundation Author...
Derivative works of this file: Semaphore (PSF).png Sentry box (PSF).png Sepal2 (PSF).png English...
DescriptionSemaphore 2 (PSF).png English: an apparatus for visual signaling (as by the position of one or more movable arms Date 13 May 2019 Source Archives...
Pearson Scott Foresman Permission (Reusing this file) Other versions Selfheal (PSF).png Semicircle (PSF).png Semidiameter (PSF).png Semaphore 2 (PSF).png...
DescriptionWig Wag (PSF).png English: To send a signal by or as if by a flag or light waved according to a code Date 1 December 2019 Source Archives of...
.png){kind=link}
.png){kind=link}
.png){kind=link}