* Delete 1 Part 3684 Black Slope 75 2 x 2 x 3 (Undetermined Stud Type)
* Delete 3 Part 3684 White Slope 75 2 x 2 x 3 (Undetermined Stud Type) (match ID 6)
* Add 1 Part 3684a Black Slope 75 2 x 2 x 3 - Hollow Studs
* Add 3 Part 3684a White Slope 75 2 x 2 x 3 - Hollow Studs (match ID 6)
Comments from Submitter:
From own set, bought new in late 2011.