The violin that was played during the ill-fated voyage of the Titanic is to be auction in April in London, if the instrument is proven authentic.

It is believed to have belonged to Wallace Hartley, the Titanic bandmaster and violinist. The instrument then has incredibly survived the tragedy back in April of 1912. It seems Hartley have secured the violin in a waterproof bag and strapped it to his chest as the Titanic sunk. And it was later retrieved from his dead body.

Once its authenticity is proven, the Titanic violin is expected to sell for a record amount on April 20 when it's auctioned by Titanic experts Henry Aldridge and Son based in Devizes, Wiltshire.

Auctioneer Henry Aldridge said previously, "When I first saw it five years ago I was amazed. If I did not think that the probability was there I would not have bothered."

"The research is expensive business but because of the historical importance of this item the money is secondary. We cannot rush the scientists," he added.

The instrument is undergoing its final extensive tests to prove its authenticity however experts believe it to be genuine. So far has passed all other tests over the last seven years and the final result of the investigation is expected early next month.

The anonymous seller of the violin claims that Maria Robinson, Hartley's former fiancé reclaimed the violin after his death and it had been a gift from her.