In lugnet.cad, Eduardo Vazquez Harte asked: (...) Steve Bliss aswered: (...) Yes, there is a real functional difference: part #4033 - Train Window 1 x 4 x 3 (the one with 4 hollow studs) has holes halfway up the sides. It's primarily intended to (...) (23 years ago, 24-Nov-01, to lugnet.cad)
