Just obtained a lovely heavy 9 inch used Ruffoni skillet. The outside is beautifully poished. It appears little used but ...who knows. The tin lining is not shiny but seems a bit dull, and I am a newbie to copper. That being said I have scoured (;)) the boards here for directions and care of copper. No copper shows through the tin. The tin appears rather dull and perhaps lightly scratched. In fact, I have tried to cook in this skillet twice now at low heat, using butter before putting on heat for simple egg/toast, and the dang thing has stuck (not burnt) both times!! Is there a way to condition/polish the tin kining? It seems quite sticky.