Vintage Dietzgen 1097T Constructo Drawing Drafting Set Germany Original Box 50s. Approximate measurements of the box are: 10 1/2" x 5 1/2". In Original Box (not in great condition-see photos) that says- Dietzgen Constructo, Drawing Instrument Set in Metal Case, 6 Instruments, Flat Type, Side Screw Bows, 1096T. Someone has written on the top of the box- Name & phone number of previous owner, Mechanical Drafting Tools, Everything Here Protractor, Used in Drafting Class 1965-1966. Research shows approximately Circa 1950's. BEAUTIFUL Set with all the bits & pieces that are typically missing. Tools are in Black case with Velvet inside holding everything snug. Made in Germany in the US Occupied Zone. Condition is preowned with no missing pieces. Snap on case in working order. 2 additional measuring tools included. Original box is torn in several places- see photos. This doesn't affect the use of the case & tools- everything you use in Pristine Vintage Condition! T17