For sale is a Lionel Truck Loading Dock, item # 6-12884 for O and O27 gauge. Original, never used and in the box. Listed new in 1999 for $27.00. Lionel #154 R.R. crossing signal, never tested or used by me. Lionel #252 R.R. crossing gate, never tested or used by me. Both the 154 and 252 have bulbs and no connecting wires.