what does the china dog represent,according to the writer

From the text:

"That china dog that ornaments the bedroom of my furnished lodgings. It is a white dog. Its eyes blue. Its nose is a delicate red, with spots. Its head is painfully erect, its expression is amiability carried to verge of imbecility. I do not admire it myself. Considered as a work of art, I may say it irritates me. Thoughtless friends jeer at it, and even my landlady herself has no admiration for it, and excuses its presence by the circumstance that her aunt gave it to her.

But in 200 years’ time it is more than probable that that dog will be dug up from somewhere or other, minus its legs, and with its tail broken, and will be sold for old china, and put in a glass cabinet. And people will pass it round, and admire it. They will be struck by the wonderful depth of the colour on the nose, and speculate as to how beautiful the bit of the tail that is lost no doubt was.

We, in this age, do not see the beauty of that dog. We are too familiar with it. It is like the sunset and the stars: we are not awed by their loveliness because they are common to our eyes. So it is with that china dog. In 2288 people will gush over it. The making of such dogs will have become a lost art. Our descendants will wonder how we did it, and say how clever we were. We shall be referred to lovingly as “those grand old artists that flourished in the nineteenth century, and produced those china dogs.”

The china dog represents those things that might be ordinary to us, but that someday they will represent our history in another generation and be cherished, similar to the way we see museum antiquities today.