This hanging oil lamp of brass, one of the finest examples of its class, is exquisitely crafted in terms of its workmanship, proportions, use of decorative motifs and the device of automatically re-filling the lamp-bowl with oil. The lamp comprises three parts namely the brass chain for hanging from the ceiling , which is attached to an exquisitely cast figure of a hansa with foliage in beak, the large central goblet in the form of a lotus for storing oil, and the lamp-bowl at the bottom.
The most interesting feature of this lamp is that the oil contained in the goblet continuously keeps dripping into the lamp-bowl but does not allow the latter to overflow as the device works on the principle of the ‘Tantalus Cup’