A Partial Set of Vintage Technical Drawing Instruments in a Fitted Case

A collection of vintage technical drawing instruments, possibly by makers such as Charvoz or Lotter, presented in a fitted case. The set includes a large compass with a jointed leg and interchangeable needle point, a small spring bow compass with thumb-screw adjustment, a ruling pen with a metal handle, and a small cylindrical metal lead container. The instruments are manufactured from a polished white metal, likely nickel-plated brass or steel. The rectangular hinged case features a black textured leatherette-style exterior and a royal blue velvet-lined interior with fitted recesses for the components. Indistinct stamped characters are visible on the body of the cylindrical lead container.