Black grained leather and silver case comprising an architect's kit, the unscrewable end adorned with a seal representing a monogram under a count's crown (wear). It includes a metal compass and three other items in 800 thousandths silver: - Demy Pied du Roy folding square, - pen-holder, - mechanical pencil. Marseille, mid-18th century. Length: 13.2 cm - Gross weight: 85 g