Used for the First-Class Architect Examination. Some of the markings are faded. The scales are different from those currently sold. Personally, I find this one easier to use. Because it also has a 1/400 scale, you can complete almost everything with just this ruler, including sketches. - Brand: TAKARA - Shape: Triangular ruler - Material: Plastic - Size: A4 size compatible - Features: Holes of various shapes - Scale: Centimeter scale - Purpose: For drafting and design - Color: Transparent 1/100, 1/200, 1/400 Thank you for viewing.