Four bronze hand-warmers, Qing Dynasty, 19th century, comprising one of gilt splashed bronze and lobed oval form, the cover pierced with diaper patterns; another, similar, of plain bronze with swing handle; and one of square form with swing handle, each with mark on the base reading Zhang Ming Qi Zhi (made by Zhang Ming Qi); and another of circular form, with mark on the base reading Zhu Tong Wen Zhi (made by Zhu Tong Wen) (8) 10 cm, 9 cm, 6.