white line chalkboard icon isolated blue background school blackboard sign vector |
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| navigate by keyword : blackboard chalkboard board chalk vector illustration blank education school background icon isolated line linear contour outline art lineart white blue classroom frame class flat empty object design space wood wooden sign template retro billboard copy banner business concept dirty lesson old back graphic study write learning teacher university inches rub |
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| White line Chalkboard icon isolated on blue background. School Blackboard sign. Vector. |
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