The color(s) black, gold, white, and light blue is/are claimed as a feature of the mark.
The words "Boiler Express" which appear beneath the design elements and the letter "B" appearing on the front of the locomotive boiler are black. The frame around the locomotive is black. The words "Boiler Express", border surrounding the inside of the black frame, the light, boiler front, and wheels of the locomotive are all gold. Suggested track and locomotive outline are black on a white background. Highlights of light reflecting surfaces of the locomotive are light blue, as well as the outline of the locomotive cab and marks suggesting motion at the rear of the locomotive.
"express"
The vertical bar at the left of the mark is black as are the words "Boiler Express" on the yellow horizontal bar which overlays the vertical bar. The frame around the locomotive is black. The words "Boiler Express", the border surrounding the inside of the black frame, the light, boiler front, and wheels of the locomotive are all gold. Suggested track and locomotive outline are black on a white background. Highlights of light reflecting surfaces of the locomotive are light blue, as well as the outline of the locomotive cab and marks suggesting motion at the rear of the locomotive.