![](https://www.horniman.ac.uk/media-collection/151/513/nn16991iii.jpg)
Perforated lid of the powdered incense clock, square section. Decorated with engraved buttferflies and scrolls on four sides, perforated eight-trigram on top encircled with a 'yin-yan' symbol and cash designs at four corners, while flower heads on the sloping sides. Made of copper alloy, 'paktong' and with copper trimming.