Wndsn Ex Mensura Scientia 2x3 3C Patch astro The Wndsn Explorer's Notebook is

The Wndsn Explorer's Notebook is the perfect EDC complement

the design works both upright as a diamond or as a 2" square

and slope quadrant

5" (38 mm) mini chemlight for lateral illumination of the scale marks for night-time or low-light observations

from 0 to 150 in 1 MIL increments

Wndsn Ex Mensura Scientia 2x3 3C Patch astro The Wndsn Explorer's Notebook isWndsn's Applied Science Lab develops and manufactures that which can't be improvised; measurement, navigation, and surveying instruments informed by the motto "Ex Mensura, Scientia" knowledge from measurement. Specifications: Height: 2" (5 cm), width: 3" (7. 5 cm) Turquoise and white on black Fully embroidered, rayon thread on nylon base Black hook backing Merrow edge