There are 2 versions:
1) Print in one piece
134mm X 146mm X 5mm
2) Print left and right side separately and glue them together (for small printers)
146mm X 74mm X 5mm
146mm X 67mm X 5mm
Below are the settings I used:
Material: PLA
Layer height: 0.2 mm
Wall thickness: 1 mm
Wall line count: 2
Infill: 20%
Brim: 2 mm
The author hasn't provided the model origin yet.