52mm Olympic Rings with Union Flag in last, symbols for Olympic sailing classes 470, Flying Dutchman, Tornado, Star, Soling, Finn / Uniface with suspender
 
This group of classes were only used together in the four Olympics between the 1980 and 1992. It may be for the 1980 Moscow Olympics that was boycotted by British Sailing as there is no symbol for the sail board that was used in the 1984 to 1992 games.