Thank you for submitting your item for appraisal. This appears to be a modern chinese porcelain vase in the manner of Canton enamel export porcelain, handpainted with enamel colours, bearing a printed Qianlong Nian Zhi mark. Such vases have been very popular since the mid 19th century and have been copied again and again. The vase in your possession most likely dates to the 1990s. The estimate is based on similar sold at auction. Prices in the trade are usually higher and can vary.