You can’t restore the smell - once it’s gone it’s gone - the volatile oils that cause the smell eventually diminish.

If you want to smell it one last time, you could saw it in half - exposing fresh grain will release the smell briefly but you’ll no longer have a chest; you’ll have two half chests! :-)

    dfk41 Funnily enough, I thought of that. Not to treat the wood with but to impregnate something and place it in the chest

    There is no camphor oil product for wood though

      I seem to recall small balls made of camphor wood being used to give the smell to chests and linen cupboards.

      You could try the Vicks on a piece of timber or a cloth.
      That way, if it was foul you could just remove it.
      Bath shops do have products with camphor scents including camphor oil.

      dfk41 Would something like cotton wool balls smeared with Vicks work? The chest is sealed 99.99% of the time so it is justs to give you that aroma on opening it

      I would buy this https://naturallythinking.com/camphor-essential-oil

      and put some drops inside, you might have to spread it out, but I personally would put a drop or 2 in each corner. Get it from here and not Amazon as it’s almost impossible to get genuine products like this from Amazon. I once bought some so called genuine essential oils from Amazon and they were so dilute you could hardly smell them…never again.

      Vicks has very little camphor in it and other things that don’t smell like camphor.

        DavecUK Many thanks……I have bought a 30ml bottle and cannot wait for it to arrive. There is a story to the chest. My father was a lawyer and back in the 70’s he had a client who opened the first sit down Chinese restaurant in Newcastle. It was called The Sunrise, next to what is now The Monument Metro station. It was enormous and set in a basement of The Emmerson Chambers, a rather grand building. Same gentleman also opened a smaller one at the same time in North Shields 50 yards from my fathers offices in Howard Street. My father used to take me to the restaurant on a lunchtime when aged about 10 on the odd day I went in with him. I can remember the menu was 3 courses for 2 shillings and 6 pence.
        Anyway, one Xmas, shortly after the New Years break, unannounced, a van pulled up outside our home. Some Chinese men got out and brought into the house this hand carved chest, that when you opened it (it was brand new) you were hit with the smell on camphor. That is some 50 odd years ago now and it has been a long time since I smelt it! I might add a photo of the chest tomorrow as quite a few have said it is one of the nicest carved ones they have seen!