Description: Vertical horiztonal illusion using the ruler found here httpsopenclipartorgdetail1795330cmmetalruler
By: GDJ
Date: 2015-04-28
Downloads: 118
Filesize: 612335
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Vertical Horiztonal Illusion sourced from Openclipart is licensed under CC0 1.0
* Note: Date might not match original source and might be an educated guess.