Blue Cover Used For Burial Detail 1957

In reference to Gunny Santiago's email and picture of the blue cover and belts. I am enclosing a picture of a burial detail I was in, back in 1957 when I was on I&I duty in my home town of Atlantic City, NJ. I am second from the right. We must not have had the blue belt at that time or I'm sure we would have worn them. This is the only time I ever wore the blue cover.   Thanks, Former Drill Instructor, Parris Island 1967-1969, Semper Fi!  Gunny Jack Bolton