Heavy bronze dragon censer with chinese ming mark?

What can you tell me about this piece? I was once told it was a spurious ming mark of the emperor Xuande. It seems to be bronze but i am not positive. It has a dragon that seems to encompass the entire piece. Elephant handles. Dimensions are approx 2 1/2" tall x 7" long x 4" width. Weighs approx 2 lbs. Possibly a censer pot? I know it has been around for at least 50 years and I suspect much longer. Does it have much value? Please let me know what you think. Thank You.