A (pair of) drawing compass(es). The rotation point of the legs are set at the screw points so resizing them should be very easy with Inkscape 繪圖 技術 體系結構 繪製中的羅盤
A (pair of) drawing compass(es). Similar to the other in my collection except this one includes the adjusting wheel. 學校 教育 繪圖 指南針 2
A sketch of a technical drawing pencil. itomatOS Linux for 2D Creativity http://itomatos.flotsm.com 鉛筆 起草 技術 技術繪圖鉛筆
The same as my other blue ruler, however in the first one the numbers are left as fonts, but in this one they are converted to curves. 繪圖 測量 學校 藍色尺規 2