Chinese Vase?

I need to do more research but the mark on your vase says “Da Qing Qianlong Nian Zhi” - which translates as "Great Qing Qianlong Period Make". This is an era within the "Qing Dynasty (1644 to 1912) within which the Emperor Qianlong reigned from 1736-1795. That comes from here https://www.figurines-sculpture.com/puzzling-chinese-porcelainpottery-mark.html And it goes on to say that the chances of it being an authentic mark are close to zero. So yours is most likely not the real thing. Maybe start our search with Chinese vase with Da Qing Qianlong Nian Zhi mark and see what happens. Note, the pic you have with the mark is upside down.

Whoops. Sorry about that. But thank you for giving me a jumping off point. I saw your comment on my other post as well. Due to your kindness, I have an idea of what to do with the piles and piles of dishes we have found. I can't thank you enough!