KM vs DDR ratings patches

[44Stephen-X]

I have seen a few threads here comparing rating patches for the KM and DDR. The fronts look very similar but does anyone have any rear views of the patches that might help tell the difference? All of the blue DDR patches I have seen appear to have the same blue backing covering the embroidery but I am still trying to learn. What do the rear of the white patches look like?
Thanks, Stephen

[germanpolice]

go for the hand embroidered insignia and you cannot go wrong