Keyboard Font, dimensions, 3d models

[tekchip]

In attempting to get the clear keyboard etched I've discovered a lack of information regarding the keyboard.

It would be highly useful to myself, and the rest of the maker/DIY community to have the font, and exact variation used (Medium 500?), any other legends for non-text keys, the exact dimensions for the keyboard keys, and space between keys etc. Bonus points for 3D models of each different size of key. Please and thank you!