* Change 2 Part Light Bluish Gray {12939 Brick, Arch 1 x 6 x 2 - Thin Top without Reinforced Underside to 15254 Brick, Arch 1 x 6 x 2 - Medium Thick Top without Reinforced Underside}
Comments from Submitter:
New part variant was not yet in the catalog when this set was inventoried. Variant confirmed in set in my son's personal collection.