Spring Mills Depot Wagontop Caboose C-2420. This is my first C-18 class caboose. This kit comes ready to run with metal wheels and Kaydee couplers. It is absolutely 100% correct for this unique type of caboose, found only on the B&O. It is a must have for any Chessie era model railroad. All I did is weather it with chalks, making sure to put liquid mask over the windows, so the Dull Coat sealer won't ruin the clear styrene. The only draw back is that the model costs over $50 a piece.