* Change 1 Part Blue {4599 Tap 1 x 1 to 4599a Tap 1 x 1 with Hole in End}
* Change 2 Part Light Gray {4599 Tap 1 x 1 to 4599a Tap 1 x 1 with Hole in End}
* Change 1 Part Red {4599 Tap 1 x 1 to 4599a Tap 1 x 1 with Hole in End}
Comments from Submitter:
Undetermined variant 4599 is marked for deletion. This set must have had 4599a because it was produced before the introduction of 4599b.
Netherlands, Overijssel
