Oil/Tallow Lamp in the Form of a Hand

A curiosity and conversation piece this does not look like it has ever been used it is an oil or tallow lamp in the form of a hand with the index finger extended so the flame would come out of the finger tip. Wonderful little pixie type chap on the lid, beautifully made I think it is clay or terracotta. It does have an impressed makers mark see last photo, but I can not identify it. Date and where it was made are a complete guess, but I think the little chap looks like he could be Japanese.