The advice never clean your coins rings true however this one was so crusted up I felt compelled to conserve it gently then a little more gently...then I went buck crazy. Yup got the crust off but look at my lovely q-tip swirls.
Once again ( about every 3 years) I learn better leave restoration to the pro's. That being said I'm at XF details cleaned whats your opionions? Thanks.

