The mark consists of gold textured letters spelling "HEAVY STEAM" on panels of green color mottled with grey and black, and with some rust accents. The panels are bordered in thin gold. Centered between the panels is a shadowed bronze circle, the circumference of which is covered with bronze rivets and black rivet holes. Inside the bronze circle are two bronze colored lines resembling a target along the x and y axes with a white circle at the crossing point of the lines. Behind the lines inside the circle is a black robot silhouette on a white background. The letter panels are bordered by riveted grey metal lines that are mottled with black and rust accents. Under the center circle is a brass design resembling the volutes and helixes of a Corinthian column. Underneath the brass design is a red exhaust pipe with black holes. Two grey and rust cannons are affixed to either side of the exhaust pipe and point downward at 45 degree angles. The top corner edges of the mark and the bottom of the "EAVY" and "STEA" letters have grey, brown, rust and white colored machinery elements. The top left and bottom right corners of the mark have white and grey smoke rising. Open areas within the mark are colored black.