Trebuchet balance - Wood, Brass

Portable brass precision balance with a wooden box, often used in the past by goldsmiths, hunters, or pharmacists.
It is an equal-arm balance, with two suspended pans to compare masses.
The entire instrument and the weights are contained in a wooden case that also serves as a base during use.
Include several brass cylindrical weights of various masses, visible in the designated housings at the bottom.
Similar objects often date back to the 19th or the early 20th century.