I have no skill in reading Chinese characters (hopefully someday) and would be grateful if anyone can help me decipher the writing on this object, which belonged to my grandparents. They traveled to China in 1985 or so, but I don't know that they picked it up then. They could have obtained it in the US, I suppose, or received it from one of their relatives. I have no idea how old it might be. There is writing on both sides of the vase, though one side might just be pictures rather than characters. For the writing on the bottom of the vase and inside the top of it, I unfortunately don't even know which way is rightside-up. I apologize if I have it the wrong way. Let me know if so, and I can replace it with a rightside-up image. Thanks very much for any help provided.
picture 5 should be preceding picture 4
the text is in seal script, read as:
roughly means: [my] descendants used [this caved item] cherishly for ten thousand years
the original verse used in ancient era, most of the time, should be “子子孫孫萬年永保用”; that, the maker had incorrect knowledge of seal script, missed the “=“ after the character “孫”; then, the character “寶” was not carved 😾