English Drawing Set

Box covered with burgundy chagrin, interior lined with velvet and purple satin, instruments in ivory, ebony, silver.
Beautiful box of 15 instruments including 3 spring compasses (dry point, pencil point, ink point), with finely grooved handles. 2 line-pullers with ivory handles, with finely knurled screws. A compass with dry point, two baluster compasses with ink point. A large compass with interchangeable breaks, 3 breaks, a mechanical storage box, an ebony and brass parallel ruler, a 6-inch ivory proportional compass, signed John Tickell on one side and W. C. Cox, Devonport, on the other side.
W. C. Cox specialized in marine instruments at Devonport, a shipyard in Plymouth.
Small lack of ivory towards the hinge of the proportion compass.
Bibliographical reference: HAMBLY, M., Les instruments de Dessin 1580-1980, Paris, 1991.