This is an interesting steel permanent speed restriction marker that was used on the Norfolk and Western and likely other railroads as well. The pointed end was to be driven into the ballast while the long end could be clipped to the underside of the rail head. The disc will need a new plastic reflector, but otherwise the marker is in original condition. Measures approximately 53" x 57" Please note that due to its' large dimensions and unusual shape, this will be costly to ship. Local pickup at our Lafayette, Indiana warehouse is strongly encouraged.