Railroad warning sign

Description

FIG. 1 is a front elevational view of a railroad warning sign showing our new design, it being understood that the broken lines are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left elevational view thereof; and

FIG. 6 is a rear elevational view thereof.