Reverting shifts and rotations to an imported object so essentially I have imported a model fetus to make a mold. At the very beginning, I shifted and rotated the object and the origin of the object to make it easier to manipulate the mold before I developed it. I now need to add to the model which requires importing the brain and editing the mold. However, I need the exact position that the fetus was originally imported to maintain accuracy. Is there any way to recreate the transformations I did on the fetus to the brain, or do revert the changes on the fetus to have the original position it was imported in?

I have tried applying the current modifications from the fetus (seen in figure 3) used to create the mold but I believe since I reset the origin, the changes would not reposition the brain correctly. Eyeballing is not really a solution here unless it is the only one. I need to maintain the accuracy of the relative positions.


Figure 1: imported position of fetus


Figure 2: imported position of fetus and brain


Figure 3: Transformed fetus used to develop mold
For reverting, the information you're missing is the exact location of the origin, before it was moved.

If you can find it (maybe reimporting the mesh, and pressing Shift S - cursor to selected) it should be simple to perform a "backflip" (just use negative values for the trasforms)