Photo 1 of Alumicolor Select-a-Scale Engineer Drafting Tool w/Rotating Calibration Rod (6IN, Gold)

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Photo 1 of Alumicolor Select-a-Scale Engineer Drafting Tool w/Rotating Calibration Rod (6IN, Gold) Photo 2 of Alumicolor Select-a-Scale Engineer Drafting Tool w/Rotating Calibration Rod (6IN, Gold)