Thank you for submitting your item for appraisal. These chinese porcelain vases were made not long ago. The design is transfer printed and the outlines filled with colour by hand. The photo of the four character mark is rather blurred, but the outline of QIAN LONG NIAN ZHI can be discerned. Such erotic vases have been popular through the centuries, but the vases in your possession are clearly much later, possibly 1960s or later. Vases like this sell in the 10 - 40 USD range. Judging from a western point of view I would regard them as not genuine, trying to deceive the buyer. There is no measurement for the sentimental value you might attach to it.