Guys, is there an obvious difference between the DJ rune patches for NPEA and Oberbann 6? They both have the same colour configuration (black rune on white circular field) but clearly an NPEA patch may be more desirable to someone who collects NPEA so how would he know what he had in his hand? The RZM label colour and designation could give a clue as to date but these aren't always found still attached so how do you differentiate between NPEA and Oberbann 6? Or is there no difference?