2137:: Stereoviews: 1918 WWI Balloon Aviation Biplane Combat. Keystone, # V18923.

2137:: Stereoviews: 1918 WWI Balloon Aviation Biplane Combat. Keystone, # V18923.
Caption reads “Observation Balloon Fatally Pierced by Incendiary Bullets from American Plane”.
Standard size, curved, sepia, verso text.

USA 1918 c.Reference number: 2021.2137