According to the Girl Scout Collector's Guide location identification on Girl Scout uniforms was first approved by GSUSA in 1921. It was to be black with buff embroidery and worn on the upper right sleeve. It would list the troop's city, number and affiliation. It was up to the troop to have the strip made. This is another example of how closely the Girl Scout program in America followed the Girl Guide program in the United Kingdom. Girl Guiding has long used ribbons with similar information on their uniforms.