Well, shortly prior to attempting removing light oxidation and dirt buildups from this very estate Stanwell 29 Royal Briar I shoulda been refreshing my memory and watch our forum member Georged*YTube video on stem refurbish, I was very close to round edges on this stem despite I tried to be cautious I could ,on the first hand I ought to be using flat fingernail file wrapped with sanding paper to prevent this happening,not too bad damages but obviously, eventually I might have ended up with round stem shoulder' edges.Then there is still this one question, how to save the brand logo while polishing.