The mark consists of a rectangle with rounded corners. In the center of the rectangle are the capital letters S, K and G, evenly spaced, and in a stylized font. Two right angles with curved vertexes are located in the top right and bottom left corners of the rectangle. To the right of the leg of the right angle situated at the lower left corner of the rectangle, is the word "MACHINISTS" all in capital letters extended from the end of the leg of the right angle to the lower right corner of the rectangle. The letters making up the word "MACHINISTS" are approximately 1/5 the S, K and G letters. The color black in the mark merely represents transparent background and is not claimed as a feature of the mark.