Central Gulf Marine Trades AssociationLogo Design Contest Logo Design Contest Contests / Central Gulf Marine Trades Association Central Gulf Marine Trades Association has selected their winning logo design. For $350 they received 66 designs from 16 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by Alexander Return to Contest Return to Contest Withdrawn New #61 Withdrawn New #60 Discussion No comments yet.