The term langyao derives from Lang Tingji, who served as director of the imperial kilns at Jingdezhen between 1705 and 1712. He is credited with reviving the production of monochrome glazes, particularly those employing copper-red. The copper-red glaze was among the most technically demanding to produce, as it required precise control of kiln atmosphere to achieve the rich, lustrous tones exemplified by the present vase. Although copper-red glazes had been successfully developed during the Ming dynasty, especially under the Xuande emperor, those produced during the Qing dynasty, especially under Lang Tingji’s supervision; display an even greater refinement, distinguished by their depth and vibrancy of color. The small size of the present vase suggests that it was likely intended for display within a duobaoge (curio cabinet), where its subtle form and sumptuous glaze could be admired at close range.