This used set of drafting tools is in great condition and includes a range of essential instruments for precision drawing and measuring. The set comes in a sturdy case and is perfect for collectors or professionals in the engineering field. The brand, KEUFFEL & ESSER, is well-known for their high-quality tools and this set is no exception. The time period of manufacture is from 1930 to now and the set was made in Germany. The item has not been modified and remains in its original state...minus just one piece.  Unfortunate; yet none the less this set is exquisite, and commands the respect of anyone who sets eyes on it.