All of Chadder & Co’s taps are solid brass so can be plated in the UK in many finishes. Weathered Brass and Weathered Copper are Special Natural finishes so the end Finish ( colour) can not be guaranteed. Weathered copper for instance can end up being quite black in colour, and other times quite brown. These finishes will tarnish too. These are not faults, just part of the effect and antique look. Please contact us if you would like pricing and more info on Chadder & Co’s special faucet finishes.