The picture shows what I believe are called "sectionalizing" switches. There are two switches in the picture. The main reason for taking the picture was the Bowl type Sediver Glass insulators. These are in service in Arizona just North of Interstate 8 between Casa Grande and Yuma near Antelope Mountain. The photo was taken March 31st, 2001 Also see: http://www.sediver.fr/product/glass/glasint.htm