Clean the brass by using a soft brush to remove any debris. If necessary, use a duster for any remaining particles.
Cut a piece of paper to put over the brass. Make sure to leave a few inches excess around the edges of the engraving. This will allow you room to work, and, should any tape damage the edges of the paper, it will not damage the final product. Specialty brass rubbing paper is high-quality, fine, strong and cloth-like. You can also use butcher paper, which is durable and costs less, or typical paper for simple projects.
Adhere the paper to the wall or the back of the replica with masking tape. Ensure the paper is flat and taut by affixing the top of the paper and rolling it down, securing one side at a time. For larger brass pieces, use a piece of tape about every 6 to 8 inches. For smaller brasses, decrease the space between pieces of tape.
Mark the outline of the image or inscription with your fingers. Hold a piece of cardboard to the outline while rubbing to stay inside.
Rub brass rubbing wax across the paper over the brass in an even up-and-down motion. Use the tip of the wax, not the side, and always rub in the same direction. Begin in one corner and work your way across the rest of the brass to avoid smudging. Brass rubbing wax is often made from a plant that grows in Northern Mexico called the "Slipper Plant." The same wax is used in cosmetics and makes brass rubbing wax harder than typical waxes such as those used in candles or crayons.
Remove the paper from the brass. Make sure that you have completed all parts of the composition before removing the paper. Remove the tape.
Polish the rubbing with a soft duster.