* Change 2 Part Dark Gray {6192 Slope, Curved 2 x 4 Double (Undetermined Type) to 6192a Slope, Curved 2 x 4 Double without Groove}
Comments from Submitter:
This set dates back to 2003, and given that this part didn't feature grooves until around 2010, it should contain the grooveless version of the brick (6291a). While I don't possess the complete set, I have several components from it, including a version of this part in Dark Gray, which notably lacks the groove.