This vintage beam compass set is a must-have for any collector of engineering and drafting tools. Made by Dietzgen and Proebster, this model no. 978 set comes complete with a hard case for easy storage and transportation. The compass is adjustable, allowing for precise measurements and accurate drafting. The brand Dietzgen is well-known for their quality drafting tools, and this set is no exception. Whether you're a professional engineer or a collector of vintage drafting tools, this beam compass set is sure to impress.