The mark consists of the letters GG and CC in stylized capital letters. The letters GG are displayed adjacent to each other in the front of the mark. The G on the right is displayed in stylized form in the direction typically represented in the English alphabet. The G on the left is displayed in stylized form in the reverse direction. Behind the two G letters are two images of the letter C in stylized form which are facing each other. In the center of the drawing is an image of a door knocker.