Front
Back Right
(Click above images to show 120dp images.)
Front Left Detail
Front Right Detail
Back Left Detail
Back Right Detail
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(Click above images to show 120dp images.) |
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Front Left Detail |
Front Right Detail |
Back Left Detail |
Back Right Detail |
This 20 inch rule does not have a type number other than "Metal-Chemical Rule" which is printed only on the outer cardboard box. The instruction book mentions Professors Yazawa and Azakami of The Tohoku University as mentors for deign of this rule. One of the features of this rule would be the G scale. This is not a scale but a collection of gauge points, which facilitate quick conversions between different units. |