Certificate archive
| Name | Owner | Period | ABC | Certificate |
|---|---|---|---|---|
| Harrow Observer | Trinity Mirror Southern | January to December 2013 | View | |
| Harrow Observer | Trinity Mirror Southern | July to December 2012 | View | |
| Harrow Observer | Trinity Mirror Southern | January to June 2012 | View | |
| Harrow Observer | Trinity Mirror Southern | July to December 2011 | View | |
| Harrow Observer | Trinity Mirror Southern | January to June 2011 | View | |
| Harrow Observer | Trinity Mirror Southern | October to December 2010 | View | |
| Harrow Observer | Trinity Mirror Southern | July to September 2010 | View | |
| Harrow Observer | Trinity Mirror Southern | January to June 2010 | View | |
| Harrow Observer | Trinity Mirror Southern | July to December 2009 | View | |
| Harrow Observer | Trinity Mirror Southern | January to June 2009 | View | |
| Harrow Observer | Trinity Mirror Southern | July to December 2008 | View | |
| Harrow Observer | Trinity Mirror Southern | January to June 2008 | View | |
| Harrow Observer Series | Trinity Mirror Southern | July to December 2007 | View | |
| Harrow Observer Series | Trinity Mirror Southern (Berkshire) | January to June 2007 | View | |
| Harrow Observer Series | Trinity Mirror Southern (Berkshire) | July to December 2006 | View | |
| Harrow Observer Series | Trinity Mirror Southern (Berkshire) | January to June 2006 | View | |
| Harrow Observer Series | Trinity Mirror Southern (Berkshire) | July to December 2005 | View | |
| Harrow Observer Series | Trinity Mirror Southern | January to June 2005 | View | |
| Harrow Observer Series | Trinity Mirror Southern | July to December 2004 | View | |
| Harrow Observer Series | Trinity Mirror Southern | January to June 2004 | View | |
| Harrow Observer Series | Trinity Mirror Southern | July to December 2003 | View | |
| Harrow Observer Series | Trinity Mirror Southern Ltd | January to June 2003 | View | |
| Harrow Observer Series | Trinity Mirror Southern Ltd | July to December 2002 | View | |
| Harrow Observer Series | Trinity Mirror Southern Ltd | January to June 2002 | View | |
| Harrow Observer Series | Trinity Mirror Southern Ltd | July to December 2001 | View | |
| Harrow Observer Series | Trinity Mirror Southern Ltd | January to June 2001 | View | |
| Harrow Observer Series | Trinity Mirror Southern Ltd | July to December 2000 | View | |
| Harrow Observer Series | Trinity Mirror Southern Ltd | January to June 2000 | View |
