Created by SD3D_KONG and originally posted on Thingiverse (https://www.thingiverse.com/thing:2791853). It's an awesome print so I'm sharing it here so more people can discover it, but please take the time to check out the original post and give SD3D_KONG the kudos he deserves!
I printed this model using a 0.6mm nozzle set to 0.3mm and it turned out really well. The sides and back connected to the base without needing to be sanded.
The author hasn't provided the model origin yet.