Warning Signs.
- MR-WAW Advance Warning Series
- MR-WDAD Diamond Advance Warning Series
- MR-WDAL Diamond Alignment Series
- MR-WDAX Diamond Auxiliary Series
- MR-WDI Diamond Intersection and Junction Series
- MR-WDO Diamond Road Obstacle Series
- MR-WDP Diamond Pedestrian Obstacle Series
- MR-WDRC Diamond Railway Level Crossing Series
- MR-WDRW Diamond Road Width, Low and Narrow Clearance Series
- MR-WM Miscellaneous Series
- MR-WSP Special Purpose Series
