RPi Offcial Red Case
grabcad
Since I couldn't locate the specific model of the original case, I opted to create my own design.
Download Model from grabcad
With this file you will be able to print RPi Offcial Red Case with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on RPi Offcial Red Case .