A simple red rubber stamp with a grunge texture clearly conveys the direct prohibition NO SLEEPING on a white background
Schlüsselwörter
prohibition,
rule,
regulation,
warning,
restriction,
signs,
symbol,
official,
grunge,
distressed,
textured,
rectangular,
safety,
order,
management,
policy,
compliance,
forbidden,
explicit,
notice,
message,
information,
important,
exclusion,
limitation,
control,
alert,
instruction,
directive,
warning sign,
red,
white,
typography,
word,
communication
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