I agree,the likelihood of a resistor of any of the other suggested values changing to within 5% of 47 Ohms is incredibly remote.I think it is in fact a 47Ω.It looks to me like it has been getting hot.1st ring the orange looking band is burnt yellow. 2nd ring the brown looking band is burnt violet.3rd ring is confusing the issue with its redish shade depending ont the paint pigments this could be burnt black.measuring the resistance of the component reveals it to be 42Ω.providing the resistance is being measured correctly the result is consistent with the resistance loss of a heat damaged resistor .
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