Tiansheng Yuanbao, folded iron mother, diameter 29mm, weight 8.4g. Tiansheng Yuanbao, folded iron mother, diameter 29mm, weight 8.4g. Tiansheng Yuanbao, folded iron mother, diameter 29mm, weight 8.4g. Tiansheng Yuanbao, folded iron mother, diameter 29mm, weight 8.4g. Tiansheng Yuanbao, folded iron mother, diameter 29mm, weight 8.4g.