brass rubbing
noun [ C or U ] uk/ˈbrɑːs ˌrʌb.ɪŋ/ us/ˈbræs ˌrʌb.ɪŋ/
（在教堂黄铜纪念牌上的）拓印；拓印图
the activity of putting a sheet of paper on top of a brass in a church, and rubbing it with a special pencil to make a picture, or a picture that is made in this way