Brass rubbing
Brass rubbing was originally a largely British enthusiasm for reproducing onto paper monumental brasses – commemorative brass plaques found in churches, usually originally on the floor, from between the thirteenth and sixteenth centuries. The concept of recording textures of things is more generally called making a rubbing. What distinguishes rubbings from frottage is that rubbings are meant to reproduce the form of something being transferred, whereas frottage is usually only intended to use a general texture. Brass rubbings are created by laying a sheet of paper on top of a brass (then called "latten" - a zinc-copper alloy produced  via the obsolete calamine brass process) and rubbing the paper with graphite, wax, or chalk, a process similar to rubbing a pencil over a piece of paper placed on top of a coin. In the past rubbings were most commonly made using the equivalent of what nowadays is called "butcher's paper" [a roll of whitish paper] laid down over the brass and rubbed with "heelball", a waxy glob of black crayon once used to shine shoes. Now most brass rubbers purchase special paper rolls of heavy duty black velvety material, and the crayons are gold, silver or bronze (other  colours are available). According to the Monumental Brass Society, the practice of brass rubbing does not harm a brass if competently carried out, assuming the brass is securely fixed. Nonetheless, in many cases creating rubbings is banned by historical sites and churches. Brass rubbing centres with replicas of original brass plaques have become a prime source for brass rubbings in the UK. Replicas are often not the same scale as the original.