Letter Measure Length G Width A Distance between the centre of the outer crescent and the seam of the white band ​1⁄2 G B Diameter of the outer circle of the crescent ​1⁄2 G C Distance between the centres of the inner and outer circles of the crescent ​1⁄16 G D Diameter of the inner circle of the crescent ​2⁄5 G E Distance between the inner circle of the crescent and the circle around the star ​1⁄3 G F diameter of the circle around the star ​1⁄4 G L Length ​1 1⁄2 G M Width of the white hem at the hoist ​1⁄30 G