Athearn B&O C-23 Caboose. This is a custom made caboose from the much larger Athearn Bay Window Caboose kit. I have a whole page on this project. It is a complicated project that is not easily explained here. See the tips page for more info. This is now a fairly accurate model of a typical older steel B&O caboose. Lots of these cabooses rode the rails for the Chessie System.