Chicago FD dispatched fire engines by telegraph until the 1990s. http://chicagoareafire.com/blog/2015/02/chicago-fd-history-the-joker-stand/ http://chicagoarea

Chicago FD dispatched fire engines by telegraph until the 1990s. http://chicagoareafire.com/blog/2015/02/chicago-fd-history-the-joker-stand/ http://chicagoareafire.com/blog/2015/02/chicago-fd-history-t...