US&S Artwork based on images from Mike Burgett of Control Train Components. These files were contributed by Dick Bronson.
| os-r-ss-west-closed.gif | |
| os-r-ss-west-thrown.gif | |
| os-ss-r-west-inconsistent.gif | |
| os-ss-r-west-unknown.gif | |
| ss-r-west.gif | |
| README | (download) |