This is an interesting Chinese ornate blue Cloisonné incense plate (for cone incense) with a rotating plate and a pot to dump used ash into. 

This was once an ash tray and can now find new life holding incense and making cleaning up ashes a simple affair.  

Made of copper, copper alloys and vitreous glass enamel. 

Having been carefully displayed for nearly five decades since acquired by a dedicated local collector, it remains in fine condition.