* Add 1 Part 14520 Dark Bluish Gray Brick, Modified 2 x 4 - 1 x 4 with 2 Recessed Studs and Thin Side Arches (Alternate) (match ID 3)
* Add 1 Part 3794b Light Bluish Gray Plate, Modified 1 x 2 with 1 Stud with Groove (Jumper) (Alternate) (match ID 1)
* Change 1 Part Dark Bluish Gray 52038 Brick, Modified 2 x 4 - 1 x 4 with 2 Recessed Studs and Thick Side Arches {match ID 0 to 3}
Comments from Submitter:
Found these variants during part-out. I've double-checked the number printed on the 14520 part.