This antique proportional divider mechanical drafting tool from Post Germany is a must-have for any collector of vintage drafting tools. The precision and quality of this tool is unparalleled, making it a valuable addition to any engineering or science and medicine collection. The fitted case adds an extra layer of protection and showcases the beauty of the tool. With its intricate design and attention to detail, this device is perfect for anyone who appreciates the artistry of vintage drafting tools. The brand, Post Germany, is synonymous with quality and this model, the 4140, is a testament to their commitment to excellence. Whether you're a collector or simply appreciate the beauty of finely crafted instruments, this antique proportional divider mechanical drafting tool is sure to impress.