A question mark drawn on a blackboard in chalk.

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Words and symbols drawn on a blackboard in chalk.

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Size: 4256px × 2831px
Location: London, Ontario, Canada.
Photo credit: © Jonny White / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: ?, blackboard, chalk, chalked, drawing, drawn, mystery, query, question, questions, slate, symbol, write, writing, written