Editing Our Lady of Guadalupe (section)

====Bartolache====
In 1787, another group of painters examined the image at the request of {{interlanguage link|José Ignacio Bartolache|es}}, a doctor and mathematician. They confirmed Cabrera's opinion that the fabric of the ''tilma'' was not coarse, but determined that it was of palm fibers. Contrary to Cabrera, however, they claimed that the image had been [[sizing|sized]] beforehand, and was not visible from behind; however, four years later, two of the painters claimed that they had never seen the back of the image and did not know if it had been sized.{{sfn|Poole|1995|p=205}} The artists came to the conclusion that the parts of the image that were original were of divine origin, though they noted that there were some touch-ups that were clearly the work of human hands, the first study to so note.{{sfn|Poole|1995|p=205}}{{sfn|Chávez|2006|p=27}}