Template:Potd/2017-10-14 (en)
![](https://upload.wikimedia.org/wikipedia/commons/thumb/6/61/Standardgraph_2522_2.5%E2%80%937_mm_lettering_guides.jpg/300px-Standardgraph_2522_2.5%E2%80%937_mm_lettering_guides.jpg)
Lettering guides for technical drawings.
This is the English translation of the Picture of the day description page from 14 October 2017.
Lettering guides for technical drawings.
Descriptions in other languages:
This is the English translation of the Picture of the day description page from 14 October 2017.
Descriptions in other languages: