![](http://www.alamy.com/thumbs/6/CDD66185-83B4-4229-B59F-ACA4B136A592/JAEY22.jpg)
blackboards,black board,1x1
Size: 5184px × 3456px
Photo credit: © Marina Lohrbach / Alamy / Afripics
License: Royalty Free
Model Released: No
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