PARAPET
| Date | Clue |
|---|---|
| 2015-03-24 | Shooter's position in a fort |
| 2009-11-06 | Citadel feature |
| 2009-01-07 | Protective wall |
| 2008-02-20 | Defensive wall |
| 2006-10-01 | Balcony's edge |
| 2004-10-30 | Bridge safety feature |
| 2003-10-24 | Balcony barrier |
| 2001-08-24 | Low wall |
| 1998-12-13 | Breastwork |
| 1998-01-06 | Defensive wall |
| 1997-12-27 | Protective wall |