Projectile silhouette 10 months 1 Grenade silhouette 11 months 0 Barb silhouette 11 months 4 Barb wire silhouette 12 months 1 A7v german tank silhouette about 1 year 4 Fokker D.VII - German World War I fighter aircraft silhouette about 1 year 10 Bell X-1 silhouette about 1 year 2 Soldier silhouette about 1 year 8 Parachute soldier silhouette about 1 year 11 Soldier silhouette about 1 year 16 Soldier in battle silhouette about 1 year 11 Running Soldier silhouette about 1 year 2 Soldier silhouette about 1 year 28 World War 1 Memorial silhouette over 5 years 211