* Change 1 Part Blue {3003 Brick 2 x 2 to 3003old Brick 2 x 2 without Inside Supports}
* Change 1 Part Blue {3002 Brick 2 x 3 to 3002old Brick 2 x 3 without Cross Supports}
Comments from Submitter:
Source: set in my personal collection that was originally bought sealed and never mixed with parts from other sets.
Netherlands, Overijssel
