VTG 4 Piece Gunmetal Copper Apothecary Canister Set Ceramic Knobs

Vintage 4 Piece Nesting Kitchen Canister Set Sugar Flour Coffee Tea The canisters are electroplated in a gunmetal finish but is worn off in some places to show copper underneath I have tried to get pics of this The label badges have a brass finish The knobs on top are white ceramic and a r affixed with screws. I have not done any deep cleaning or polishing of these to preserve the finish. Measurements are in photos Please feel free to ask any questions