We have not attempted to polish any of the brass weights. The item "Vintage 18 Piece Calibration Brass Scale Weight Set 1g to 500g 1kg 2kg 5kg D1163" is in sale since Friday, July 2, 2021. This item is in the category "Collectables\Science, Medical\Science". The seller is "e-clearances" and is located in Beecroft, NSW. This item can be shipped worldwide.