They are encircled by a square knot. These are generally recognized by a medal and an embroidered square knot. The reef knot or square knot represents the strength of World Scouting. Many medals may also be represented by a square knot insignia. Ribbon bars were replaced by embroidered square knot patches in 1947. It is considered inferior to the reef knot (square knot), which it superficially resembles. These had been fastened behind her neck in a square knot. The vast majority of "square knot" insignia represents one instance of an individual's recognition. They may also wear the square knot insignia without a device. The resulting connected sum is the square knot. These awards are recognized by a certificate, medal, and an embroidered square knot insignia. The common reef knot (square knot) is sometimes mistakenly tied as a bend. No more than seven devices may be placed on any one square knot emblem. A square knot is another name for a reef knot. The square knot insignia is an embroidered green square knot on a cloth khaki patch.