monochrome icon set with optical semaphore signals
Schlüsselwörter
light,
signal,
semaphore,
optical,
traffic,
white,
old,
tower,
line,
green,
red,
warning,
icon,
vintage,
object,
telegraph,
historic,
safety,
stop,
background,
colours,
black,
illustration,
shape,
travel,
signs,
technology,
railway,
sea,
antique,
danger,
tool,
control,
station,
port,
rail,
regulate
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