* Add 2 Part 4276 Black Hinge Plate 1 x 2 with 2 Fingers (Alternate) (match ID 223708 )
* Add 2 Part 4275 Black Hinge Plate 1 x 2 with 3 Fingers (Alternate) (match ID 223707 )
Comments from Submitter:
My Grandparents gifted me this set they bought nearly 30 years ago (the only bought 3 sets, castle 375, this and a Fabuland set) and My 6971 comes with hinges having hollow studs.