Can Mending return an ornamented object to a flawless state?

I have a small hand mirror broken into two. The mirror glass itself was already broken into pieces, but the important part is the ornamented back of the hand mirror, which depicts an encrypted map.

The “tear” is no more than 1 foot, but gathering all the chips from the back of the mirror is impossible. (Imagine you are piecing a broken vase back together. You would end up with a gap that should be filled with small, fine pieces.)

Assuming that those fine chips (from the back of mirror) are lost (no time to retrieve), can Mending repair the back of the mirror to its former state, with the perfect state of the encrypted map?