2M-34 Restoration Presentation Project?

I recently purchased a presentation piece with 2M-34 obverse and reverse attached to its cover.

I removed the medals and discovered they are uniface pieces (not a medal cut in half nor two separate medals with the undesired side grinded down).

Medallic Art Co. hallmark can be seen upright (matches the side being shown and are opposite of each other)! (see 5th image)

Overall the box is in good shape and craftsmanship is excellent . I ‘m having the piece looked at by an expert to see what is the best way to restore this presentation piece.

I do collect Hawaii Banking memorabilia and this is a nice Bishop National Bank piece.

Here is copy of a good book in my collection ( http://www.ebay.com/itm/STORY-OF-BANK-OF-BISHOP-CO-FIRST-NATIONAL-BANK-OF-HONOLULU-Original-1931-Book-/371229160828?pt=LH_DefaultDomain_0&hash=item566efb757c)

b7 b6

b3 b4 b1 b2