WWI k.u.k. Austro Hungarian Anti Aircraft Gun Double Eagle A157 (Unique Vintage Glass Plate Negative 1910s)

exceptional and ultra rare original historical glass plate negative measuring approximately 12 x 9 cm. this unique photographic master record from world war i stems from an official austro-hungarian military archive.
the high-resolution image features a heavy k.u.k. anti-aircraft gun flak or artillery piece positioned in a reinforced mountain emplacement with rocky terrain in the background. the gun barrel is aimed high into the sky.
as a spectacular historical detail, the protective steel shields in the foreground are clearly painted with the large imperial austro-hungarian double-headed eagle insignia doppeladler.
the left edge of the plate features the contemporary hand-scratched military archive registration code a. 157.
the glass plate is in good vintage condition with exceptional contrast, sharp mechanical details of the artillery piece, and a fully intact emulsion. a true museum-grade artifact for collectors of k.u.k. artillery history, uniformology, and austro-hungarian military technology. 

size: ~ 12 x 9 cm (1 cm ~ 0.39 inch)

condition: very good...please also refer to scans which show complete glass plate

photography, fotografie, positive, glasdia, glas dia, glas negatif, photography, ww1 glass negative, world war i, 1914 1918, k.u.k. artillerie, austro hungarian army, doppeladler, double headed eagle, glass plate negative, 12x9 cm, flak gun, anti aircraft artillery, mountain warfare, alpenkrieg, isonzo front, kriegsmarine coastal defense, unique photo archive, military insignia, weapon blueprint, photo a157