Allen Heath System 8 knob in various colours

These came from  nice  System 8 they are slightly smokey or it can be that they are suffering from this bromide leaching , I will try some different cleaners, I have not cleaned these as chances are you may need to match them up and they will look daft if others have faded you may well just need the tops as they are a non standard size.

3 colours available

price for one knob