Los Angeles-based studio Ensso has designed an all-in-one fountain pen with scale ruler for architects and engineers. Launched on Kickstarter, the Escala pen has a long, triangular cap that doubles as ...

2 Scales ruler: features with 2 scales, inches and metric scale, with clear and easy to see markings Quantity: comes with 50 pieces transparent rulers, the size of this ruler is 12 x 1.1 inch (L x W), ...

The inch, based on the length of a thumb, and the foot based on, well, the length of a foot, are inherently associated with human scale (Getty/iStock) Sign up to our free Brexit newsletter for our ...