Gold watch and pair case, the watch signed 'Jno. Curtis, London, 5921', the pair case embossed and chased with The Presentation in the Temple, after Augustin Heckel, casemaker's mark 'IW' and London hallmarks for 1786-7. Gold watch and pair case, the watch signed 'Jno. Curtis, London, 5921', the pair case embossed and chased with The Presentation in the Temple, after Augustin Heckel, casemaker's m…