A Poseidon secret austrian table clock, silver and enamel, end of XIXe s. Signed on the movement Joseph Köftler, Wien, n°1657 Mecanical, white enamel ring dial with black arabic numbers and gilted guilloché center, 3 turtles foot, mythologics scenes (part of the myth of Amymone (missing trident and damage to the enamel) Provenance :  Christie's sale of 21 octobre 1993, lot 253