The Albatros C.I was the first of the successful C-series of two-seat general-purpose biplanes built by Albatros Flugzeugwerke during World War I. Based on the unarmed Albatros B.II, the C.I reversed the pilot and observer seating so that the observer occupied the rear cockpit which was fitted with a ring-mounted 7.92 mm (0.312 in) Parabellum MG14 machine gun.

While the C.I was operated mainly in a reconnaissance and observation role, it also had some success as an early fighter aircraft - Oswald Boelcke claimed his first victory while flying a C.I with Lt. von Wühlisch as the gunner. Germany's most famous World War I aviator, Manfred von Richthofen, also began his career as an observer in the C.I on the Eastern Front.

As with the other WW1 aeroplanes at Krakow, this is the only surviving example of it's type. The restored fuselage is on display in the 'WW1' hangar at the Muzeum Lotnictwa Polskiego. Krakow, Poland. 23-8-2013.

It's history is given in the following info taken from the museum website:-

"The Albatros C.I was a two seat, all-wood German reconnaissance biplane. It was developed by Robert Thelen based on the earlier Albatros DD, a two seat biplane conception, designed by Ernst Heinkel just before the outbreak of the war.

According to the German designation system introduced in the spring of 1915, the "C" category comprised two-seat armed aircraft used mainly for reconnaissance, artillery spotting as well as for attacking targets on the ground. With time, the "C" aircraft would be equipped with radio equipment.

The Albatros C.I was produced in the years 1915–1918 at the Albatros Flugzeug Werke, the BFW (Bay) works, the LFG works, the MFW works and the Merkur Flugzeugbau works. A single aircraft was built at the Ostdeutsche Albatros Werke in Schneidemühl (today's Piła in Poland). The production was ceased in favour of the more modern C.III variant.

The Polish Air Force utilised 49 Albatros C.I airframes. The majority of these were taken over by the Poles on ex-Prussian territory included in the Polish state reconstituted in 1918, and a few were captured on the ex-Austrian and ex-Russian territories. Because of their low performance, the C.Is were qualified as aircraft for aeronautical schools. During the Polish-Bolshevik War in 1919–1920, they were flown in combat. After the war had ended, the aircraft were in service with the aeronautical schools in Warsaw, Poznań, Krakow, Bydgoszcz, Toruń and Grudziądz, where the last Albatros C.I was flown as late as 1922 in the Military Flying School.