A painting kept in a Scottish farmhouse could turn out to be a Da Vinci worth over $150 million.

59-year-old Fiona McLaren had been given the painting by her father and hadn't thought much of it until she sent it to be appraised and discovered that it could be an original piece by Leonardo Da Vinci himself.

Experts at Cambridge University and the Hamilton Kerr Institute are investigating the painting in detail to determine how old it is and who painted it.

Indications of a da Vinci: 1. A similarity between the boy and child in his famous piece Madonna of the Rocks, 2. A distinctive 'v' shape in the middle of the woman's hairline reminiscent of that shown in the last supper, 3. The fleur-de-lys is often said to be a hidden emblem of the secretive Priory of Sion, 4. The area by the woman's shoulder is unfinished, common in da Vinci works, 5. A tracing of the figure in the Last Supper matches exactly the outline of the woman in this painting, 6. The baby's second toe is longer than the big toe - another classic da Vinci feature  Source