Second known published Crested Saguaro, 1929 We haven't found this one.
Crested Saguaro on Journal Front page Cactus and Succulent Society of America, Vol. 1, No. 1, July 1929
Arizona Highways, October 1950 (photo by Josef Muench) From the article In The Land of The Desert Giants by Joyce Rockwell Muench: "While not many diseases or pests attack the Saguaro, an injury to the circular cell group at the apex sometimes produces the crested or 'cristate' forms. Weird and interesting, they are actually a sort of cancerous growth where the cell grows too rapidly and may be caused by bacteria or perhaps the stab of a bird's bill."