Gridfinity tray for Mitutoyo 2046A dial indicator, likely fits others with lug back, plastic cap on top, and dovetail features on the top corners. The indicator sits high enough you can grab onto the bezel, so I didn't include finger recesses. The lip is about one or two mm above the indicator to give a little protection.
Including version with and without a recess tray for accessories.
The author marked this model as their own original creation.