2072:: Stereoviews: FRENCH Observation Balloons near Coblenz GERMANY WWI Military. Keystone, V18945.

2072:: Stereoviews: FRENCH Observation Balloons near Coblenz GERMANY WWI Military.
Standard size, curved, text verso. Keystone, V18945.

WWI, war, France, observation balloons, balloons, aviation, French, military intelligence

USA WWI c.Reference number: 2021.2072