This mint patch pictures the science chevron as seen on the episodes of classic Star Trek. It was worn on the left breast of the shirts, as worn by Dr. McCoy and Mr. Spock. It measures 3 1/2″ high. Originally made by Majal Barrett Roddenberry’s company, these have always been difficult to find outside of Star Trek conventions, and have been totally unavailable for many years. It has a glue backing for easy application to any cloth surface and has been stored in a smoke and pet free environment.