1883-1mercantile block.jpg C:\Documents and Settings\mgentry\Local Settings\Temporary Internet Files\Content.IE5\SKFO41WX\MCj04247480000[1].wmf firedoors1911.jpg C:\Documents and Settings\mgentry\Local Settings\Temporary Internet Files\Content.IE5\SKFO41WX\MCj04247480000[1].wmf
The 1911 Sanborn map also reveals that the Ball factory has implemented automatic sprinklers into the fire prevention systems at the factory.  The locations are noted with an icon:
C:\Documents and Settings\mgentry\Local Settings\Temporary Internet Files\Content.IE5\SKFO41WX\MCj04247480000[1].wmf C:\Documents and Settings\mgentry\Local Settings\Temporary Internet Files\Content.IE5\SKFO41WX\MCj04247480000[1].wmf as.jpg
Standard fire doors have also been implemented in the factory, as shown in the machine shop:
fire doors icon.jpg