Every year, San Francisco firefighters respond to emergency calls from a street alarm box system that was in use when horses still pulled the engines.rnThere's almost no. part of the city that's more than two blocks away from one of the 2,040 antique red iron boxes that use telegraph technology, and almost all carrying the name of the city's defunct Department of Electricity. And in an age when cell phones and instant communications have spelled doom for the boxes in other major cities, San Francisco is happy with its link to the past.
展开▼
