Financials & Filings

Annual Reports

Filing date	Form	Filing Group	View
Feb 20, 2018	10-K	Annual Filings	View HTML 0000055135-18-000006.pdf 0000055135-18-000006.rtf 0000055135-18-000006.xls EX-101.INS - XBRL INSTANCE DOCUMENT
Feb 17, 2017	10-K	Annual Filings	View HTML 0000055135-17-000008.pdf 0000055135-17-000008.rtf 0000055135-17-000008.xls EX-101.INS - XBRL INSTANCE DOCUMENT

Proxy Statements

Filing date	Form	Filing Group	View
Apr 09, 2018	DEF 14A	Proxy Filings	0001193125-18-110922.pdf 0001193125-18-110922.rtf 0001193125-18-110922.xls View HTML

Form 10-Q

Filing date	View
Aug 08, 2018	0000055135-18-000020.pdf 0000055135-18-000020.rtf 0000055135-18-000020.xls EX-101.INS - XBRL INSTANCE DOCUMENT View HTML
May 10, 2018	0000055135-18-000012.pdf 0000055135-18-000012.rtf 0000055135-18-000012.xls EX-101.INS - XBRL INSTANCE DOCUMENT View HTML

Form 10-K

Filing date	View
Feb 20, 2018	View HTML 0000055135-18-000006.pdf 0000055135-18-000006.rtf 0000055135-18-000006.xls EX-101.INS - XBRL INSTANCE DOCUMENT
Feb 17, 2017	View HTML 0000055135-17-000008.pdf 0000055135-17-000008.rtf 0000055135-17-000008.xls EX-101.INS - XBRL INSTANCE DOCUMENT