A fine 19^th Century English lever chronograph by Nicole Nielsen in a gold half hunter case.  Gilt three quarter plate keyless movement, going barrel.  Engraved cock with polished steel regulator, compensation balance with blue steel overcoil hairspring. English table roller lever escapement, escape and lever pivots with endstones.  Signed and numbered white enamel dial with flyback centre seconds chronograph and subsidiary for continuous seconds at 9 o'clock.  Roman numerals, blue steel half hunter hands.  Engine turned 18 carat half hunter case with blue enamel chapter ring.  Clip on back, maker's mark “AN” in a rectangle.  number corresponding to that on the movement.