abstract
access
alarm
alertness
attention signal
authorized personnel only
awareness
beware
billboard
border
california
caution
closed
do not enter
fence
forbidden
gate
guarding
hazard
indication
information sign
keep out
lettering
limitation
message
metal
military
no entry
notice
notification
permission
permit
plate
prohibited
protection
regulation
restricted area
safety
signboard
stay off
stop
symbol
text
trespassing
unauthorized
united states of america
us
usa
violators
warning
定額
Restricted area, authorized personnel only sign in USA. Red letters, keep off warning on metal fence, United States border symbol. No trespassing notice means violators will be prosecuted by US law.の素材 [FY310156158719]
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