A simple ruler made of solid brass.
It is made by punching out a brass plate with 45 tons of pressure and engraving the memory with a laser engraver.
A ruler is a simple tool that requires delicate skills.
One side is slightly raised to make it easy to pick up and draw lines with an ink pen.
As the brass is used over time, it takes on a deeper, darker hue, giving it the feel of an antique tool.