Hi. Don't know if you are still interested after nearly 3 years, but I think it is the British studio artist Peter Layton. His work is so voluminous and varied, it might not be easy to recognise the item as his. You can find his website and lots of examples of his work using Google.
The signature you've given us is only half visible, but you can compare yours with others here
. See also reply #3 in that thread for another example of Peter Layton's signature.
Please report the results - and give us a better photo of the signature if you can.