FILE MARKING:
1) Underline_C - Original model with back wall (solid/closed). Vertices: 240177 Polys: 307432
2)Underline_O - Original model without back wall (open). Vertices: 176831 Polys: 173698
Please note that the model is detailed and may not be correctly reproduced on insufficiently accurate equipment. You can see a video demonstration of the correct slicing of the model in the slicer (Cura). Keep in mind that even as a solid (closed), the model is not monolithic, but consists of many parts. Make sure this won't be a problem for your printer.
This model is part of a set, you can see more in my profile.