Ognissanti Crucifix determined a genuine Giotto

For centuries, a 14th century, painted cross, housed at the Ognissanti church in Florence, was considered to have been produced in a workshop, but prolonged restoration efforts have proven that the five-metre-high cross is a genuine Giotto. (photo)

The five-year-long restoration,including infrared photography and X-rays, revealed preparatory sketches that led to the work being attributed to giotto himself.