This is yet another oven knob model. I couldn't find an existing model that matched the one I shattered.
The model was created in FreeCAD 0.20 and exported to .step format. The FreeCAD file is included in case you want to remix.
I sliced in Prusa Slicer using the default settings for a 0.25 mm Draft print and printed with black Prusament PLA filament. Total print time was about 1h20m on an Original Prusa MINI+.
The author hasn't provided the model origin yet.