black chalkboard icon isolated seamless pattern white background school blackboard sign vector |
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| navigate by keyword : blackboard chalkboard board chalk vector illustration blank education school background icon isolated seamless pattern random white black 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 teaching |
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| Black Chalkboard icon isolated seamless pattern on white background. School Blackboard sign. Vector. |
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