richard et cie/ richard and co clock???

Posted: Mon Jul 04, 2011 1:56 pm     Post subject: richard et cie/ richard and co clock???

Hi
after lots of searching on the net i think I have identified my clock as been made by richard et cie - it has r&c in a oval with snakes on (little like a pharmacy sign).
anybody know anything about these clocks - how i can date it and value it?
does that mark sound familar?
confused