In this clip above, it may appear to be a regular violin that the woman is playing. But as we said in clue number one, sometimes looks can be deceiving. Can you guess how the instrument was made?
We will reveal its origins in this week’s episode of The Revealer, Thursday on Back|Story. Share your guess in the comments section below, and we'll give on-air credit to the first person to guess correctly.
note: in the video above, Laura Powell of England’s South West Music School is playing this unique violin.