black and white drawing of a water faucet scanned and vectorized from the book "Scan this Book", which clearly states that all content is in the PD only collection and layout are copyright.
龍頭
black & white、faucet、plumbing、spigot、tap、vintage、vintage by fb、water
黑，白、龍頭、水暖、塞子、龍頭、釀酒、由fb復古、水
資料來源：openclipart ( https://openclipart.org/ )