Twill weave pattern.
<a href="//commons.wikimedia.org/wiki/User:Mrmw" title="User:Mrmw">Mrmw</a>
2021-03-13
Own work based on: <a href="//commons.wikimedia.org/wiki/File:Patrone_Steilgratkoeper.png" title="File:Patrone Steilgratkoeper.png">Patrone Steilgratkoeper.png</a>: <a href="//commons.wikimedia.org/wiki/File:Patrone_Steilgratkoeper.png" class="image"><img alt="Patrone Steilgratkoeper.png" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Patrone_Steilgratkoeper.png/80px-Patrone_Steilgratkoeper.png" decoding="async" width="80" height="80" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Patrone_Steilgratkoeper.png/120px-Patrone_Steilgratkoeper.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Patrone_Steilgratkoeper.png/160px-Patrone_Steilgratkoeper.png 2x" data-file-width="350" data-file-height="350"></a>