Antique French technical drawing kit dating back to the early 1900s

The set is complete with all tools and accessories. Many tools are ivory  

The kit is housed in an elegant wooden box, with unique mother of pearl inlay and with a silk lining. The box bears the words "Compas Superieurs Brevetes S.G.D.G." Under the main compartment is another.

The box is complete with key  

Both the instruments and the box are in good overall condition. The satin lining is worn in some places.