Dear Richard,
I tried sending you this as a PM but could not. I am interested in your comment on olive oil. I have an ancient blade that is badly affected by rust and I was thinking intially of studying it without any invasive cleaning. I have used X-Ray photography before which brings some details out. But if olive oil is an effective rust remover with minimum harm I may try this method. Do you have any more details on this method.
Best Regards.
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