Vintage Chinese blue and white porcelain sleeve vase

Chinese blue and white porcelain cylinder vase, often referred to as a "sleeve vase" or bitong if used as a brush pot.
• Manufacturer: The vase originated from Jingdezhen, China, the historical center for high-quality blue and white porcelain production.
• Identification Marks: The bottom of the vase features a four-character reign mark in underglaze blue, likely a "Kangxi Nian Zhi" (Made in the reign of Kangxi) mark.
• Production Era: While the mark on the bottom references the Kangxi Emperor (1662–1722), the specific style and execution of your piece suggest it is a "Kangxi Revival" item produced in the late 19th century (Guangxu period, 1875–1908) or the early 20th century.
• Mark Context: It was a common practice during the late Qing dynasty to use "apocryphal" marks from earlier popular reigns like Kangxi to denote high quality or to appeal to collectors.

Please see photo of small kiln flaw that occurred during manufacturing.