Mars 561702 Oval Scale rulers 300mm
front: 1:1 1:5 1:20 1:200
back: 1:25 1:250 1:50 1:500
Staedtler 561702AU 561 70-2 AU

10554170 4007817032299

Staedtler 561702 Oval scale rules AS1212-2 300mm scales
front: 1:1, 1:5, 1:10, 1:100
back: 1:20, 1:200, 1:50, 1:500

AS1212
Professional quality 
Made of white P.V.C 
Tough, flexible, climactically stable, and will not discolour or become brittle with age
Antiglare finish makes the scales easy to read
Manufactured with an engraving process:
Dividings and figures have the same accuracy as the die
Dividings and figures are sharper and deeper, and are therefore permanent
Line thickness of dividings are controlled to give maximum clarity