Some wooden rulers do not start with 0 at the edge, but have it set in a few millimeters. How could this improve the accuracy of the ruler? - Quora
Ruler rulers length numbers straight hi-res stock photography and images - Alamy
Ruler rulers length numbers straight hi-res stock photography and images - Alamy
One centimetre hi-res stock photography and images - Alamy
Numbers 0 1 2 3 4 hi-res stock photography and images - Alamy
White Plastic Rulers - Baldwin School Supply
30 cm ruler hi-res stock photography and images - Alamy
One centimetre hi-res stock photography and images - Alamy
Plastic ruler hi-res stock photography and images - Alamy
0 3 26 28 hi-res stock photography and images - Alamy
Cm ruler hi-res stock photography and images - Alamy
Cm ruler hi-res stock photography and images - Alamy
BVDA - Photograhic rulers and scales
Why don't rulers start their count at the edges? - Quora