7784-1 (Inv) The Batmobile Ultimate Collectors' Edition 1045 Parts, 2006 Sets: Batman I
* Change 3 Part Black {44302 Hinge Plate 1 x 2 Locking with 2 Fingers on End (undetermined type) to 44302a Hinge Plate 1 x 2 Locking with 2 Fingers on End with Bottom Groove}
Comments from Submitter:
I have this set. I confirm there is a groove.